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Lesson Plans

Academy Curriculum Exchange (K-5). The Academy Curriculum Exchange offers 32 mini-lesson plans covering various math topics at the elementary school level.

Academy Curriculum Exchange (6-8). The Academy Curriculum Exchange offers 13 mini-lesson plans covering various math topics at the middle school level.

Academy Curriculum Exchange (9-12). The Academy Curriculum Exchange offers 8 mini-lesson plans covering various math topics at the high school level.

ACCESS INDIANA Teaching & Learning Center Teacher. The ACCESS INDIANA Teaching & Learning Center provides a collection of mathematics lesson plans for grades K-12. Categories include general math, algebra, calculus, fractals, fractions, geometry, measurement, and statistics & probability.

Activity Search from Houghton Mifflin. Activity Search from Houghton Mifflin features a curriculum database where the K-8 teachers can search for math lesson plans/activities by grade level.

Algebra Online Lesson Plans. Rice University and the Houston School District provides beginning algebra lesson plans developed by teachers.

Ancient Egypt Lesson Plans for Teachers. The Detroit Institute of Arts (DIA) provides a variety of cross-curricular lesson plans for grades 4-8 based upon the theme of ancient Egypt. Formath teacher-created plans, click here.

ALI Featured Cuuriculum Resources. The Apple Learning Interchange (ALI) provides a library of computer and online lesson plans for the elementary, middle, and secondary schools. At each level, you'll find plans for mathematics.

ALI Resources. The Apple Learning Interchange (ALI) provides a collection thousands of Internet resources for teaching and learning in grades K-12. You can search this online catalog by subject and level, or by keyword. To find language arts lesson plans and ideas for English and literature, use the subject pull-down menu.

ALI Units of Practice. The Apple Learning Interchange (ALI) contains lessons for integrating technology into the teaching and learning process for grades K-12. You can search this Internet collection by subject and level or by keyword. To find all the math lessons, use the "subject" and "level" pull-down menus.

Apply Learning Network: Applications of Mathematics 9 and 10. The Apply Learning Network provides a collection of high school mathematics lessons that connect classroom learning with real-life, workplace applications.

Archive.edu. Archive.edu, from the University of Houston's College of Education, is a storehouse of instructional materials on a variety of topics for grades K-12. The site includes technology-related lesson plans for mathematics.

AskERIC Lesson Plans: Mathematics. AskERIC Lesson Plans provides a searchable collection of over 50 mathematics lesson plans contributed by teachers for grades K-12. Each lesson plan features an overview, purpose, objectives, activities, and resource materials. Topics include algebra, applied math, arithmetic, geometry, and measurement.

Ask Jeeves: Where can I find lesson plans? Ask Jeeves provides hundreds of K-12 lesson plans for a variety of subject areas. The site includes three pull-down menus as well other seach engines for finding math lesson plans and classroom activities.

ASPECT: Activities. The Assessment Project for Erie County Teachers (ASPECT) a collection of lesson plans organized by grade level for grades K-12. Most of the plans include reproducible student worksheets.

Autumn's Free Activity Page for Kids. Autumn's Free Activity Page for Kids provides weekly a variety of printable worksheets for the primary grades to complement lessons in math and other subject areas.

Awesome Library: Math Lesson Plans. The Awesome Library contains a collection of hundreds of math lesson plans for K-12. Another good source for math plans in this library is Across Subjects.

Best Classroom Practices. Chevron's Best Classroom Practices feature the award-winning teacher-designed lesson plans for grades 6-9 and grades 10-12. To view or print these lesson pages, you must download Adobe's free Acrobat Reader.

Best Practices and Technology Workshop 1997. The Best Practices and Technology Workshop 1997 contains lesson plans developed by teacher-participants for grades 7-12.

Big Sky Math Gopher Menu. The Big Sky Gopher Menu contains a collection of math lesson plans for grades K-12. Topics include fractions, decimals, whole numbers, ratios and story problems.

Blue Web'N. Blue Web'N, sponsored by Pacific Bell, provides an online library of 19 lesson plan sites for mathematics. To find math plans, scroll to "Browse the Content Table". You can also search the library for math resources. The site, suitable for grades 3-12, is updated weekly.

Browse by Theme. Browse by Theme from Houghton Mifflin contains a collection of cross-curricular lesson plans for grades K-6. Some of the themes that include plans for math are Disasters, Family, Weather, and Observation.

CanTeach. CanTeach, maintained by Iram Khan & James Hörner, provides a wide variety of elementary school resources including math lesson plans.

Carol Gossett's Kindergarten Connection. Carol Gossett's Kindergarten Connection contains math lesson plans useful for the primary grades.

Carol Marinas' Mathematics Lesson Plans. Carol Marinas' Mathematics Lesson Plans contains a collection of lesson plans for grades 6-12 contributed by preservice teachers at Barry University in Michigan.

Casio Classroom: Activities. Casio Classroom provides a variety of calculator-based resources developed by teachers for arithmetic, algebra, and calculus in grades 4-12. In the following three sections, you'll find calculator lessons and activities: (1) Calculator-Based Activity Resources, (2) Systemic Initiative Teaching Environment for Algebra, and (3) Systemic Initiative Teaching Environment for Calculus .

CCHS Math Department Home Page. The Concord Carlisle High School (CCHS) in Concord, Ma. provides Peter Atlas' online math lessons for high school students. Topics include the census, probability, currency, weather, astronomy, and used cars.

CEC Lesson Plans. CEC Lesson Plans, sponsored by the Columbia Education Center in Portland (Oregon), features a wide variety of lesson plans created by teachers for use in their own classrooms. To find math plans to fit your needs, scroll to "Mathematics" and click on Elementary (K-5), Intermediate (6-8), or High School (9-12).

Chance Database. The Chance Database, developed by Dartmouth College and the University of Minnesota for grades 9-12, provides coursework, problems, and resources dealing with understanding chance and probability in daily life. There are examples, problems, and extensive literature, as well as a number of study modules. In the Teaching Aids section, teachers will find materials useful for introductory statistics or probability courses.

Charlie's Graphics Calculator Site. Charlie's Graphics Calculator Site provides a collection of CFX 9850G+ worksheets for high school students. Teachers can print and recopy this support material for use in their classrooms

China: Dim Sum - A Connection to Chinese-American Culture. Dim Sum (a Cantonese term meaning "a little bit of heart"), developed by Newton's Angier School in Massachusetts, features a variety of cross-curriculum lesson plans to enhance awareness and understanding of Chinese-American culture in grades 2-5. To find 14 math plans, click here and to find a listing of all the lesson plans, click on Index.

Classroom Connect's Internet Lesson Plans. Classroom Connect provides a collection of mathematics, science, social studies, and language arts lesson plans using the Internet for grades 7-12. To view and print the plans, you must download Adobe's free Acrobat Reader.

Classroom Lessons Library. Classroom Lessons, provided by the K-12 New Zealand teachers magazine Starters & Strategies, contains a library of ready-to-use units for math and other curriculum areas.

Columbia Education Center's Mini Lessons. The Columbia Education Center provides a collection of lesson plans for grades K-12 contributed by teachers attending summer workshops. The site includes over 50 mathematics plans for grades K-5, 6-8, and 9-12.

Collaborative Lesson Archive (CLA). Bill and Dee Chapman's Collaborative Lesson Archive (CLA) is a searchable database of lesson plans contributed by teachers for all grade levels and for all subject areas. To find math plans, click on a grade level and then select math for that grade.

Conjectures in Geometry. Conjectures in Geometry is an online project created by a trio of teachers taking a course at the University of Minnesota's Geometry Center during Winter of 1996. Their high school project contains interactive lessons featuring 20 conjectures found in typical geometry texts. Included in each conjecture are definitions, sketches and explanations, SketchPad demonstrations, and follow-up activities with solutions. For Dave Wiggins' hands-on algebra lessons, click here.

Connections+. Connections+ from McRel provides a collection of lesson plans and activities for calculators, patterns, fractals, algebra, polyhedra, place value, and other topics in grades K-12. To find these resources, scroll to "Mathematics". In addition, the site offers Currency Exchange resources.

Connecting Students. Connecting Students provides a collection of math lesson plans for grades K-12.

Cooperative Learning Lesson Plan Categories. Patrick Morris' Cooperative Learning Categories contain 18 lesson plan activities in mathematics for grades K-6.

Core Knowledge Lesson Plans from National Conferences. Core Knowledge provides a collection of integrated lesson plans and units developed by teachers for use in grades preK-8. To find math plans, click on a grade level.

Core-Plus Mathematics Project. The Core-Plus Mathematics Project (CPMP) provides sample lesson plans for high school classes. To find these plans and other activities, click here.

CTAP: Classroom Connect Internet Lesson Plan Index. Classroom Connect through California Technology Assistance Project (CTAP) offers a variety of Internet lesson plans for grades 4-12. Math topics include buying the best pizza, money, logic in mysteries, buying this car, calculating car loans, and linear equations.

Course Materials from the Geometry Center. Course Materials from the Geometry Center provide online educational materials containing projects for students and teachers in the middle school and high school math classes. Another hands-on geometry lesson that repeats the observations and computations done by Eratosthenes over 2,000 years ago is Dennis P. Donovan's Eratosthenes Finds the Circumference of the Earth!.

CRPC GirlTECH Lesson Plans. The Center for Research on Parallel Computation (CRPC) GirlTECH lesson plans, designed by teachers for middle school and high school students, are 25 Internet-based lessons and activities covering a wide variety of math topics. For '97 lessons, click here; for '96 lessons, click here, and for '95 lessons, click here.

CSI Math Lesson Plans and Activities Page. The Chicago Systemic Initiative (CSI), maintained by Loyola University Chicago School of Education, provides a collection of math lesson plans and activities for grades K-8.

CSMEE Lesson Plans: Mathematics. The ERIC Clearinghouse for Science, Mathematics, and Environmental Education (CSMEE) provides a short list of math lesson plan sites for grades K-12.

Curriculum Studio.The Curriculum Studio, part of the Kennedy Center's ARTSEDGE Web site, provides a collection of math lesson plans, units, and related resources for grades K-12.

Cuisenaire Learning Place: Teacher's Edition. The Cuisenaire Learning Place provides teaching notes containing a collection of hands-on math activities for grades K-6 that can be printed to use as worksheets.

CyberMath: Virtual Math Museum. The Mukilteo School District provides six problem solving lesson activities for elementary school students. Each lesson includes a description, the supplies needed, and a solution.

Cynthia Lanius' Mathematics Lessons. Cynthia Lanius provides a collection of her mathematics lessons for grades 6-12

Daily Learning Activities. Daily Learning Activities, prepared by the Ontario Ministry of Education and Training for parents and caregivers, is a collection of eleven packages of activity worksheets that a teacher can use to enhance the mathematics curriculum in grades 1-8.

Daybook. The Daybook, a collaborative project between the Computer Using Educators of BC (CUEBC) and the BC Tel Interactive, is a searchable database of BC teacher-developed lesson plans for grades K-12. To find over 35 math lessons, enter "math" as your keyword or select "Math" as your subject from the pull-down menu.

Discrete Mathematics Project. The Discrete Mathematics Project provides provides classroom activities developed by teachers on a variety of discrete mathematics topics for middle school students. Each activity contains a printable student handout. Topics covered are social decision making, graph theory, counting techniques, matrix models, mathematics of iteration/recursion. The site also includes links to other discrete mathematics lessons as well as math definitions.

DEEP 96. The Distance Education Environment Page (DEEP) 96 offers cooperative learning activities for a variety of subject areas in grades K-8. Math lesson plans include modules for numeration, operations, geometry, and other topics.

Educate the Children: Lesson Plans. Educate the Children provides a collection of hundreds of lesson plans and worksheets contributed by teachers for grades K-12. The site includes 53 plans for math.

Education World: Mathematics Lesson Plans. Education World, sponsored by American Fidelity Services, provides over 400 math lesson plans for grades K-12. Categories include algebra & trigonometry, applied math, arithmetic, fractions, geometry, and measurement, time, & money.

Education World: Lesson Planning. Education World, sponsored by American Fidelity Services, provides weekly an article focusing on a specific topical theme such as hurricanes, first day of school, whales, or a specific holiday for grades K-12. Included in each article are suggested cross-curriculum lessons and activities covering a wide range of topics. Each article als offers printable student worksheets and links to relevant sites. The site includes an archive of previous lesson planning articles.

Educast Lesson Plan Search. Educast, designed by Davidson and Associates for grades K-12, provides a collection of lesson plans that is updated weekly. To search for math plans, choose all the grade levels, select math or brain teasers as your subject, and click on Search. To narrow a math search, select one grade level and use the keyword search option. Each lesson plan includes printable student activity sheets that require Adobe Acrobat Reader installed on your computer.

Educational Explorers. Educational Explorers, created by licensed teachers, contains 200 math worksheet lessons with answers in English and Spanish for grades three, four, five, and six. Teachers can print and recopy these worksheet exercises for classroom use. The site also a teacher's page with practical tips.

Educator's Toolkit. The Educator's Toolkit offers a collection of over 60 sites with hundreds of lesson plans in various subject areas for grades K-12

EdVenture's Teacher Resource Centre. EdVenture Web site provides a wide variety of lesson plans for grades K-12. The plans are organized by grade level and each plan is identified by subject area.

ENC Online. ENC Online, the Web site of the Eisenhowser National Clearinghouse for grades K-12, provides a collection of math sites with lesson plans and classroom activities to supplement the existing math curricula or integrate the Internet into the classroom. ENC also offers other sites with plans in the math & science category as well as the in the general K-12 category.

ENC Resource Finder Search. The Eisenhowser Clearinghouse (ENC) provides a resource finder that lets you search ENC's Internet catalog for K-12 math and science curriculum resources. To find a vast collection of math lesson plans, enter "math lesson plans" as your search words, select all the grades (preK-12) as your targeted levels, choose $0 as your maximum cost (the last item in the pull-down menu), and click on Search. You can also use the resource finder's browse/search feature to find mathematics materials.

Encarta Lesson Collection. Encarta's Schoolhouse offers a collection of lesson plans contributed by K-12 teachers for a wide variety of subject areas. To find plans for math, click here.

Escape from Knab. Escape from Knab, an simulation sponsored by Firstar for grades 7-12, provides monthly online lessons for teaching students how deal with real-life financial decisions. The simulation takes participants through a series of financial decision- making experiences in the entertaining setting of the fictitious planet, Knab, where visitors discover the results of their actions and decisions. To find the lesson plan collection and the accompanying printable activity sheets, click on educational stuff.

EverydayMathematics©TeacherIdeas.EverydayMathematics©TeacherIdeas features a collection of sites and teacher tips correlated with topics to enrich your math lessons in grades K-6.

Explorer. Explorer provides a searchable database of math lesson plans and activities for grades K-12. To view the entire collection organized by topics, click on Mathematics Curriculum. Math topics include problem solving and reasoning, whole numbers and numeration, geometry, statistics and probability, algebraic ideas, and measurement.

Exploring Data. Exploring Data, from the Math Forum's Urban Systematic Initiative Workshops for K-12 teachers, provides a collection of lesson plans for collecting, analyzing, and displaying data. The lessons are organized by grade level as follows: K-4., 5-8, and 9-12.

Exploring Discrete Mathematics in the Classroom. Exploring Discrete Mathematics in the Classroom contains five holiday-related lesson plans created by teachers for grades K-8. For a description of discrete mathematics, click here. Another lesson plan is Judy Ann Brown's Mathematician's Birthday Calendar in which students are asked to design a birthday card, write a report, identify pictures, and create a bulletin board of mathematicians on the calendar.

Fast and Easy Retrieval of Mathematics Resources (FERMAT). Singapore's National Institute of Education FERMAT project offers a wide variety of lesson planscontributed by teachers for grades K-12. Topics include whole numbers, fractions, decimals, algebra, geometry, and much more.

Filamentality. Filamentality, provided by the Pacific Bell Knowledge Network for grades K-12, helps teachers create online lessons and activities for their students. To view a list of math lessons and activities contributed by other teachers, click here and select All for both Activity Format and Grade Level and then choose Mathematics for Subject Area. The site provides step-by-step procedures for creating a variety of page formats including a hotlist page, a treasure hunt, and a Web-based activity page. Each page is accompanied by a description and an online example. For online help, tutorials, and guidelines for creating your own Web documents, click on Beyond the Son of Filamentality.

Find Mathematics Sites on the Internet. The Math Forum Internet Resource Collection Searcher finds math lesson plans on the Internet for grades K-12. Teachers can search for plans by keyword, type of resource (lessons & class materials), topic, or grade level.

Florida Center for Instructional Technology (FCIT). The FCIT, located at the University of South Florida, contains a searchable database of over 200 technology-related lesson plans developed by Florida teachers for grades 4-12. The collection, known as T'NT (Technology 'Nformation for Teachers), includes plans for a variety of subject areas including mathematics. Teachers can search for lesson plans by grade level, subject, or keyword.

Forum Web Units and Lessons. Forum Web Units and Lessons feature a collection of math lessons for grades 5-12 created by the teacher-participants in the Swarthmore College Summer Institutes. Among the classroom activities are Tom Scavo's "Adventures in Statistics" and "Tangrams", Richard Briston's "Tenth Grade Internet Math Assignments", Norman Shapiro's "Geometry Through Art" and Jan Garner's "Perspective Drawing, Moebius Strip, Polyhedra, and Spreadsheets", and "Exploring Data" for the Urban Systemic Initiative.

Fractals. Fractals is a series of online lessons and activities developed by Cynthia Lanius to introduce fractal geometry in grades 5-8. Students create fractals, explore fractal resources on the Web, and learn about this modern math topic. The site also includes teachers' notes and print versions of the handouts. For more information and classroom activities about fractals, click on the Why Files' Fun with Fractals..

Frank Potter's Science Gems: Mathematics. Frank Potter's Science Gems provides an extensive collection of mathematics lesson plans and activities for grades K-12. Categories include K - 3 Mathematics, 4 - 6 Mathematics, Pre-Algebra, Algebra I and 2, Euclidean and Advanced Geometry, and many others.

Free Math Worksheets for K-6. The MathGen Software Company provides online a collection of over two dozen free worksheets for the whole numbers that elementary school teachers can print and recopy for use in their classrooms. Each worksheet has an answer sheet.

Fresno SCORE Mathematics Institute. Fresno SCORE Mathematics Institute provides a collection of online lessons and activities contributed by teacher-participants for grades 5-9.

Gateway to Educational Materials (GEM). GEM, sponsored by the U.S. Department of Education, provides access to lesson plans on the Internet, curriculum units, and other education resources for grades K-12. Click on Subject and scroll to "Mathematics" to find a list of topics containing these resources. For help using this subject index, click here.

GC EduNET Lesson Plans. GC EduNET Lesson Plans, from the Georgia College & State University server, provides a variety of lesson plans written by teachers for grades K-12. To find math plans, click GC EduNET Lesson Plans..

Geometry and Spatial Sense. Geometry and Spatial Sense contains a variety of hands-on geometry lessons organized by primary, intermediate, middle school levels for grades K-8. Topics include congruency, symmetry, similarity, reflections, rotations, and translations, parallelism, perpendicularity, scaling, and tesselations.

Geometry Online. Geometry Online contains a variety of interactive Web-based lessons and activities that Cynthia Lanius used with her geometry class at Milby High School in Houston. Examples include Impossible Triangles where students try to figure out why "Impossible triangles ARE impossible" and SAT-Type Quiz where students try to improve their test scores by becoming familiar with the types of questions most frequently asked on the SAT. Both activities offers instant feedback. For other math/science lessons, click here.

Geometry Through Art. Geometry Through Art contains Norman Shapiro's assortment of lesson ideas, tips on teaching vocabulary, lists of materials needed, and student handouts that teachers can photocopy for use in their elementary school classrooms.

Geometry Web Page. Ephraim Fithian's Geometry Web Page features a variety of 16 hands-on geometry lesson activities for grades K-8. Topics covered are tangrams, Golden Ratio, geoboard, polygons, symmetry, constructions, polyominoes and polyiamonds, star polygons, special points in polygons, polygon tessellations, kaleidoscope tessellations, Escher tessellations, space cubes, polyhedra, symmetry in space, and topological considerations.

Glenbrook South Internet Projects. Glenbrook South Internet Projects is a collection of online algebra, geometry, statistics, and precalculus lessons for high school students. Many of the lessons include printable student handouts. For a list of math sites to other online projects and activities, click here.

Good News Bears. The Good News Bears is a stock market simulation for high school students. Each student start with a $1 million to buy stocks and competes against a partner using real-time data from the New York Stock Exchange and NASDAQ. The site includes links to related Internet resources, teacher reproducible pages, student handouts, online background/preparatory "pencil-to-paper" stock market lessons, and "How-to" pages for accessing the simulation. When students register for the program, they receive a user ID and password to log onto the UISES Stock Exchange simulation. If you are unable to access this site, try this original address for Good News Bears.

7th Grade Mathematics. 7th Grade Mathematics contains a collection of Suzanne Alejandre's interactive math lesson plans. Each lesson includes a student activity page with classroom activities and printable handouts. The site also offers Internet resources for descriptive statistics (data sense), area and perimeter, probability, modular arithmetic, and measurement of angles.

Graphing Calculator Guide. The Graphing Calculator Guide, developed by the teachers attending a 1997 CESME summer workshop, contains a collection of lessons integrating graphing calculators into the math curriculum for grades 7-12. Topics include transforming graphs, solving linear inequalities, using statistical data, investigating slope, and constructing trigonometric concepts. The site also provides an activity guide with basic calculator concepts as well as calculator lab activities packet. Acrobat Reader (free software) will be needed in order to view and/or print these materials from your computer.

Gryphon House Online. Gryphon House provides online a wealth of sample lessons from their books for preschool and primary grade children. To find math lessons, click on Free Activities!, scroll to "Math & Science", and select a title that interests you. For additional lesson material, click here including the activity book 500 Five Minute Games.

Hands-on Math: Activities for the Elementary Classroom. Janine Parker's hands-on math activities for the elementary classroom contain classroom-tested lesson plans in geometry, number patterns, and topology. The geometry plans include step-by-step instructions for constructing the Platonic solids out of toothpicks and gumdrops.

Helping Your Child Learn Math. Helping Your Child Learn Math, prepared the U.S. Department of Education, contains a collection of hands-on math lessons and activities for K-8. You'll find activities for Math in the Home, for the Grocery Store, and for Math on the Go.

Home Schooling Daily's Lesson Plan Sites. Home Schooling Daily, created by Belinda F. Augustus, provides hundreds of lesson plans for a variety of subject areas. To find math plans, click here and also here.

Highland Middle School Math Lessons and Projects. Highland Middle School provides a variety of hands-on math lessons and projects for grades 6-8. To find this collection, scroll to "HMS Math Lessons and Projects".

Homework Central: Math. Homework Central provides a collection of math lesson plans for grades K-12. Teachers can also search for math plans in the Lesson Plan Archives.

Imagine the Universe Lesson Plans. Imagine the Universe, a service of the High Energy Astrophysics Science Archive Research Center (HEASARC), provides a collection of math lesson plans for grades 6-9.

Instructional Materials in Mathematics. Instructional Materials in Mathematics, compliled by British Columbia's Community Learning Network (CLN) for grades K-12, contains a collection of sites with hundreds of lesson plans and teaching strategies for math teachers .

Instructor: Curriculum Activities and Strategies. Scholastic's Instructor magazine from offers online lessons in an various curricular areas for grades K-6. To find lesson ideas for math, scroll to Marilyn Burns' plans and activities. For thematic teaching strategies organized by grade level and renewed monthly, click here.

Integrating Technology into Math and Science. The University of Houston 's College of Education Web site Integrating Technology into Math and Science provides a collection of Internet-based middle school lesson plans contributed by preservice teachers. To find the math plans, scroll to "Mathematics" on the Lesson Plans Page.

Integrated Mathematics, Science, Technology Lesson Plans. Greta Kocol's integrated lesson plans for high school math classes cover a variety of topics including fish population samples, scales to present data (graphing), and understanding the pH scale.

Integrated Technology Curriculum. Integrated Technology Curriculum, from the Independent School District 196 in Rosemount, Minnesota, provides a collection of over 80 computer lesson plans organized by grades K-5 and 6-8. Elementary school teachers will find math plans here and here, whereas middle school teachers will find a few math plans in the multimedia section.

Interactive Algebra. Robert Bunge's Interactive Algebra allows high school students to practice equations, factoring, and graphing skills, with multiple levels in each topic. The site generates random problems, which students work on paper, and they can check their answers when they're ready. Hints are also provided.

Internet Educational Workbook (INEW). The Internet Educational Workbook (INEW) provides an extensive collection of printable math worksheets (hardcopy version) for elementary school teachers to recopy for classroom use. In addition, site offers numerous online interactive activities for elementary school students to improve their math skills. Some of the topics covered are +, -, x, and ÷ of whole numbers and fractions, U.S. coins & money, place value, rounding numbers, Roman numerals, and the metric system. For a grade-level listing of all the topics, click here.

Introduction to Descriptive Statistics. Introduction to Descriptive Statistics features online lessons with interactive student activites designed to develop the basic concepts of in descriptive statistics. The site is sutable for grades 8-12.

Investigating Worksheets Around the Net. Investigating Worksheets Around the Net, from Belinda F. Augustus' Home Schooling Daily, provides a collection of sites for making worksheets in grades K-12. Teachers can print and recopy for use them in their lessons. To find printable worksheets for mathematics, browse "All Subjects" and scroll to "Math".

InvestSmart. InvestSmart, a realistic stock market simulation, provides a collection of investing lessons, financial calculators, and an online financial quiz that teach high school students how money can grow with the various investment vehicles. This simulation starts each player with $100,000, charges a commission on every trade, and allows an investor to borrow up to half of his/her portfolio value at 8% APR. The site also offers investment basics, real-life examples, as well as a FAQ section giving information about the site.

Jim Wilson's Geometer's SketchPad Material. Jim Wilson's Geometer's SketchPad Material contains a collection of lessons, class assignments, problems using this GSP software for high school geometry classes. For other GSP lessons, click on Key Curriculum Press' online activity guide, to configure your Netscape browser to access these lessons, click here.

K-5 Math Lesson Plans. K-5 Math Lesson Plans were created by teachers from Anderson County Schools in Tennesse.

Kevin's Lesson Center. Kevin's Lesson Center features a collection of lesson plans contributed by teachers for grades 4-12. The site includes math plans.

Kodak: Lesson Plans. Kodak provides a collection of lesson plans for grades K-12 that require the use of a camera. For math plans, click here.

K-12 Statistics. K-12 Statistics, provided by UICU's Office for Mathematics, Science, and Technology Education (MSTE), features a collection Internet-based statistics lessons. The lessons are organized to follow the NCTM Statistics Standards. The site also offers useful data collection-organization Web sources.

KQED/CELL Math Lessons. KQED's Center for Education and Lifelong Learning (CELL) presents a series of their math lessons as well as other math lessons for grades K-12. You can also find the all the lessons sorted by grade level.

Kunkel's Mathematics Lessons. Kunkel's Mathematics Lessons contain lesson plans for high school geometry classes using the Geometer's Sketchpad. To download a free demo or get ordering information for this software, click here. The site also includes other lessons for exploring geometric patterns, measuring the volume dodecahedron, and finding the volume of a torus.

Leafy Greens Council. Leafy Greens Council features "Cruciferous Crusaders", an integrated 26-page unit with a collection of lesson plans for grades K-3. The math plans contain printable game activities, student handouts, test items, and an answer key.

Learning Activities Archive. Learning Activities Archive, from Kaplan's SCORE, provides a collection of lessons for various curriculum areas. Math topics include adding and subtracting money, word problems, percents, statistics (calculating means), geometry, fractions, decimals, and brainteasers.

Learning Space: WWW Research Lessons Library. WWW Research Lessons Library provides a collection of online math lessons for grades 4-12 created by Washington state teachers. To view a list of all the lesson titles organized by grade level, click here. The site also includes a rubric to help teachers design and create their own Internet lessons.

Lesson Plan Page. Kyle Yamnitz's Lesson Plan Page contains hundreds of lesson plans contributed by Kyle and other teachers for grades K-8. To find language arts plans on the main page, click here. For more math plans on page# 2, click here.

Lesson Plan Place Links.. The Internet Education Group provides a collection of hundreds of sites with thousands of lesson plans for integrating the Internet into K-12 classrooms. To find math plans, click here. To find other sources with math lessons at this site, click on miscellaneous plans or plans from friends on the Net.

Lesson Plans for Problem Solving. Howard C. McAllister provides from his 21st Century Problem Solving Web site a sequence of lesson plans designed to help your students learn to solve problems logically. Scroll to "Apple Learning Exchange" to find similar lesson plans by Howard. The site is suitable for grades 3-12.

Lesson Plans Using GSP. Lesson Plans Using the Geometer's Sketchpad (GSP), developed for grades 6-8, provides a collection of geometry lesson plans with overviews, objectives as well as tests for each grade. For more information about the Geometer's Sketchpad and other GSP classroom activities for grades 7-12, click here and also the Math Forum's Corner for Interactive Geometry Software (CIGS).

Lesson Plans, Classroom Activities, and Resources. The Lake and Sumter Regional Partnership of school districts in central Florida provides a collection of lesson plans organized by subject area for grades K-12. For language arts plans and activities, click here.

Lesson Plans on the Internet. Elizabeth B. Miller has compiled a collection of lesson plans organized by topic for grades K-12. The following topics contain mathematics plans: Lesson Plan Databases with Subject Categories and Mathematics.

Lesson Plan Wizard. Lesson Plan Wizard, from Globe Fearon's Teacher's Room for grades K-12, lets you search for lesson plans by interest (grade) level or by content area. To find math lesson plans, scroll to "Content Area", select math, and click on Search.

Lesson Starters. The Birmingham City Council Education Department offers a wide variety of "warm up" activities as lesson starters for the first ten minutes of every mathematics lesson in grades 5-8.

Lesson Stop. Lesson Stop, maintained by Therese Sarah for grades K-12, contains over 400 sites with thousands of lesson plans for a variety of subject areas. To find a collection of math plans organized by topic and grade level, click here.

Lessons to Motivate Underachieving Math Students. Lessons to Motivate Underachieving Math Students contains a collection of sites featuring Internet-based math lessons and activities for grades 9-12.

LETSNet: Math Lesson Plans. The Learning Exchange for Teachers and Students through the Internet (LETSNet), designed for the K-12 classroom, contains a collection of math teaching units with online student activities. The units include Fat Counting, What's for Dinner?, Fact Checking the News, Earth Day Trash Survey, and Destination: Anywhere.

Library in the Sky. The Library in the Sky, from the Northwest Regional Educational Laboratory (NWREL), provides hundreds of K-12 lesson plans for a variety of subject areas. To find math plans, click here, and to find additional math plans, click on Across Subjects .

Link-to-Learn Classroom Activities. Link-to-Learn, an initiative of the Commonwealth of Pennsylvania, contains a collection of hundreds of Internet-enriched lesson plans, units, and activities contributed by teachers for grades K-12. Math teachers can find lesson plans for the elementary school, middle school, and high school. Each classroom activity includes a plan to organize and structure the lesson, an activity worksheet that can be used online or printed for use as a handout, and extension tips with related sites for the lesson.

Lots of Lesson Plans. Lots of Lesson Plans, compiled by Elizabeth B. Miller, contains a wide variety of lesson plan resources for grades K-12 covering many subject areas.

Louisiana Challenge Lesson Plans for the K-12 Classroom. Louisiana Challenge provides a collection of lesson plans prepared by Louisiana teachers for grades K-12. The lessons, arranged by elementary, middle, and high school levels, are divided into subject areas including mathematics. Each lesson covers one to three classroom sessions.

Mad Math Minutes. Mad Math Minutes is a math program that creates online interactive worksheets in addition, subtraction, multiplication, and division for grades 1-7. Teachers can use it to reinforce their students' computational skills.

Marc Sheehan's Lesson Plans Page. Marc Sheehan's Lesson Plans Page contains the author's original math lessons on story word problems, candy math, and code breaking for the primary grades. The site also includes general lesson plan links.

Math Activities for K-12 Teachers. Math Activities for K-12 Teachers, developed at California Polytechnic University in conjunction with NASA Dryden Flight Research Center, contains a collection of space-related lesson plans for grades K-6, grades 7-8, and for grades 9-12. The plans, based on aeronautical themes and NASA projects, cover geometry in the constellations; fractions, decimals, and gravity; and predicting and estimating the speed of aircraft topics. Each lesson offers printable activity worksheets, photos, video clips, related links, and useful background information for the teachers.

Math Advantage. Math Advantage features a collection of interactive lesson activities, games, and puzzles to coordinate with Harcourt Brace's K-8 math series. Each grade level offers online activities for students and resources for teachers. All this lesson material fits into any K-8 math curriculum, and teachers can also print out projects and activities, listed by grade level, to complement their math programs.

Math Central. The University of Regina's Math Central provides online a Resource Room featuring a searchable database of hundreds of lesson plans for a variety of math topics developed by Saskatchewan teachers. The plans are organized by elementary (K-5), by middle (6-9), and by secondary (10-12) grade levels.

MathCounts: Extended Activities. MathCounts, sponsored by the GTE Foundation, offers two extended lessons that contain problem solving activities for middle school students. Both lessons develop math skills within real-world contexts and feature a teacher's guide, a student guide, background information, and a detailed drawing to be used in the lesson.

Math Cove Projects. Math Cove Projects include geometry and other math lessons using Java applets for high school classes.

Mathematics Activities Guide. CESME's Mathematics Activities Guides, for grades K-8, features a collection of lesson plans developed by Tennesse teachers attending an University of Tennesse (Martin campus) summer workshop. There's a guide for grades K-2 , 3-5, and 6-8. Each guide includes the following topics: number sense and theory, estimation, measurement, and computation, patterns, functions, and algebraic thinking, statistics and probability, spacial sense and geometric concepts. To view or print these guides, you must download Adobe's free Acrobat Reader.

Mathematics Archives: K-12 Teaching Materials. Mathematics Archives contain an extensive collection of lesson plans, activities, and other Internet resources for teaching math in grades K-12.

Mathematics: Developmental/Related Activity Guides. The Mathematics: Developmental/Related Activity Guides originaly created for the vocational technical schools in Louisiana contain a collection of lesson plans with real-life activities that are applicable for students anywhere in grades 7-12.

Mathematics Education Resource Page. The faculty of education at the University of Western Ontario provide a variety of math resources including class handouts and semi-programmed lesson plans suitable for high school math classes. To view and print this material, you'll need to download Adobe's free Acrobat Reader.

Mathematics Lesson Plans. The University of Saskatchewan's College of Education provides permutations and combinations lesson plans for grades 9-12 contributed by Intern teacher Cristal Glass.

Mathematics Lessons Database. The University of Illinois Mathematics Lessons Database, from their Office for Mathematics, Science, and Technology Education (MSTE), features a searchable database of over 100 interactive Internet lesson plans involving real-life situations for grades K-12. To browse or view the complete list of lessons, click here.

Mathematics Resources. Mathematics Resources, compiled by the Holy Redeemer Catholic School in Canada, is a collection of math lesson plan sites for grades 3-8.

Mathematic Strategies Lesson Plans. Mathematic Strategies Lesson Plans, from the North Carolina Department of Public Instruction, provides a collection of lessons to match math competency goals in grades K-12. To find a math lesson for a competency goal, click on a double XX in the table and scroll to "Resources". Lesson plans are available for arithmetic as well as for geometry in grades 1, 2, and 4.

Mathematics Clarifying the TEKS. The Mathematics TEKS (Texas Essential Knowledge and Skills) provides a collection of lesson plans for grades K-12. To find a table with plans and/or activities for K-8, click here; and to find a list of high school activities, click here.

Math Lessons & Courses. The Math Forum provides an extensive list of titles to lessons and activities for grades K-12. To view the list with descriptions, click on Annotated Version, or to view selected sites, click here.

Math Projects and Activities. Harcourt and Brace Publishers provides a collection of math projects and activities categorized by grade level. These materials make excellent math lesson plans for grades K-8 and can be printed out for classroom use.

MathsVR: Lesson Plans/Worksheets. The Mathematics Virtual Resource Room (MathsVR) contains lesson plans and worksheets contributed by UK teachers for grades 7-12.

MathSphere Free Worksheets. MathSphere provides a collection of over 100 free worksheets that elementary school teachers can recopy to complement their math lessons. To read and print them out, you must download Adobe's free Acrobat Reader.

MathStories.com. MathStories.com, updated regularly, consists of over 1,000 math word problems, classified according to grades and topics. Each math worksheet has enough room for students to show their work. Many of the worksheets are based on history and science. You can print, recopy, and use these worksheets for teaching problem solving in grades 1-5.

Math Teacher Link. The Math Teacher Link, from the University of Illinois at Urbana-Champaign, provides a collection of classroom lessons for high school math teachers. The resources are organized by the traditional high school course names: Algebra I, Geometry, Algebra II, Trigonometry, Precalculus, and Calculus., and include Probability and Statistics lesson material.

Math Teacher Link. The Math Teacher Link, from the University of Illinois at Urbana-Champaign, provides a collection of classroom lessons for high school math teachers. The resources are organized by the traditional high school course names: Algebra I, Geometry, Algebra II, Trigonometry, Precalculus, and Calculus., and include Probability and Statistics lesson material.

Math Work. Scott Bryce's Math Work allows elementary school teachers to create and print math worksheets for addition, subtraction, multiplication, and division of whole numbers.

McREL: Lesson Plans and Activities. Lesson plans and Activities, compiled by Mid-Continent Regional Educational Laboratory (McREL), contains a collection of K-12 lesson plans for a variety of curricular areas. For the math plans and activites, click here.

Merrill Lynch Family Saving Center. The Merrill Lynch Family Saving Center features a variety of lesson plans and activities prepared by the Bank Street College of Education for teaching students about the value of money and the basics of saving. The site provides money equivalents activities for the primary grades with printable coin cut outs. In addition, teachers in grades 4-12 will find the following activities: a whole class budget plan; a printable Spend or Save? game; a saving scrapbook; and investigating investments. The site also includes a list of printable activity sheets for classroom use.

Merced SCORE Mathematics Institute. The Merced SCORE Mathematics Institute provides a collection of lessons developed by teachers for the middle school.

Microsoft Productivity in the Classroom. Microsoft provides a collection of lesson plans and computer activities to integrate software into the K-12 classroom. The site offers plans for various subject areas, and each plan includes a teaching guide as well as a student activity. To view the complete list of lessons, click on Lessons at a Glance. To find other Microsoft and Scholastic's lessons and activities for integrating specific software in the classroom, click here and scroll to "Teacher Activity Guides".

Mighty M&M Math. Mighty M&M Math features an online lesson plan for teaching fractions and percentages and includes sample data tables. The site is suitable for grades 5-8.

Mike Oravec's Home Page. Mike Oravec's Home Page contains middle school math lesson plans written by the author as a participant in the University of Pittsburgh's Center for Mathematics and Science Education Workshop at Johnstown. To find his lesson activities such as "basketball percent", "M and M percent", and "Name That Tune", scroll to Lesson Plans.

Mint. The Mint, sponsored by the Northwestern Mutual Life Foundation and the National Council on Economic Education, contains printable lesson plans and a variety of online resources that teach the basics of and personal money management and economics in grades 6-12. Students can learn "How to Be a Millionaire" by filling out calculation forms that show them how long it will take to earn their million depending on the type of investments they make and how much they save each year. They can also play the Real World Credit Card Game or any of several other interactive games and quizzes. In addition, the site includes a dictionary of financial terms.

Moneyopolis. Moneyopolis, created by Ernst & Young, provides a financial planning curriculum for students in grades 6-8. Teachers will find a collection of lesson plans and other useful resources in the teachers and the library sections. The site also includes the following online features for students: a simple calculator, a game in which they can practice math skills in the virtual town of Moneyopolis, and an active worksheet (a spreadsheet) that keeps track of their money by totalling up weekly savings and by calculating monthly as well as yearly savings.

Mrs Donn's K-12 Lesson Plan & Activities. Mrs Donn provides a collection of lesson plan sites for grades K-12 including math plans.

Mrs. Glosser's Math Goodies. Mrs. Glosser's Math Goodies provides a collection of online 23 interactive lessons in geometry, per cent, and number theory for middle school students.

MSDP: Frisbie Middle School's Phase 2 Project. Frisbie's Middle School Demonstration Project (MSDP) in Rialto, Ca. contains a collection of lessons contributed by their math teachers for grades 6-8. To find the plans, scroll to "Mathematics Lessons by Frisbie Teachers".

MSTE Supported Courses. The Office For Mathematics, Science, and Technology Education (MSTE) provides a collection of lesson plans for grades 5-12 developed by students taking University of Illinois math education courses since 1997. You can search for plans by grade level, content area, and keyword(s), or you can browse the complete list. To find other math lesson plans by undergraduate University of Illinois students, click on Student Directory of Personal Web Pages.

Nadyne's Lesson Plans. Nadyne's Lesson Plans are consumer math high school projects using the Web to gather information. Each project includes a teacher page with a lesson plan and strategies, a student page guiding the students through the project, and a link page with useful useful sites for each lesson.

NASA MEPP Learning Units. The NASA Mathematics Education Partnership Program (MEPP) Learning Units is a collection of math lesson plans contributed by summer Institute teachers. The collection is divided by elementary, middle, and high school grade levels.

NCES Smoky Hill Project. The National Center for Education Statistics Smoky Hill Curriculum Project, created by Nancy Long, contains seven cyberstatistics lessons lessons designed around the data from the NCES. High school students view charts and graphs and then to react to them by writing.

Neptune's Web. Neptune's Web, sponsored by Naval Meteorology and Oceanography Command (CNMOC), provides a variety of cross-curricular lesson plans including math. The site, suitable for grades K-12, offers printable student worksheets with the lessons.

Neufeld & Associates Lesson Menu. Neufeld & Associates updates weekly a collection of hundreds of lesson plans and worksheets to correlate with its software curriculum, Understanding Math Programs , for grades 5-10.

New Hampshire NTTI Lesson Plans. The New Hamshire National Teacher Training Institute (NTTI) provides a collection of math and science lesson plans for grades K-12. The lesson plans are organized by elementary, middle, and high school levels.

New York Times on the Web Learning Network. The New York Times on the Web Learning Network provides a daily lesson plan as well an extensive lesson plan archive covering a variety of topics for grades 6-12. Topics include mathematics. Each plan is based on today's news and includes the New York Times article that you can print out and recopy for classroom use.

NHPTV Knowledge Network: Math Lesson Plans. The New Hampshire Public Television (NHPTV) Knowledge Network provides a collection of math lesson plan sites for grades K-12.

Northmoor's Internet Lesson Plans for K-6 Teachers. The Northmoor Elementary School from Oklahoma provides a collection of lesson plans for grades K-6. The site includes plans in math for K-3 and 4-6.

NTTI Lesson Plan Database. The National Teacher Training Institute provides a searchable database of over 200 instructional television math and science lesson plans created by NTTI teachers nationwide for grades K-12.

Online Activities for Standards in School (OASIS). Online Activities for Standards in School (OASIS) provides a variety of lesson plans and other resources for grades K-12 that are matched to math standards. To find math plans, click on standards, grade level , or subject area.

Online Education. Online Education provides ready-to-use lesson plans and classroom activities in a variety of subject areas for grades 6-12. You'll find Web-based lesson material in the Educator Internet Resources section.

Pascal's Triangle. Pascal's Triangle contains a collection of lesson plans for K-12 that feature questions, answers, discussion, and printable student worksheets on this famous triangle. The site includes background information for the teacher and links to other resources. For additional activities on Pascal's Triangle, click here.

PBS Mathline: Online Interaction. PBS Mathline provides a collection of online lesson plans from their television math projects for the elementary, the middle, and the high school. Topics include money, statistics, measurement, and algebra. To view and print all these plans, you must dounload Adobe's free Acrobat Reader.

PBS TeacherSource. PBS TeacherSource features an inventory of over1,000 free lesson plans, teacher guides, and online activities that complement PBS television programs. Using the keyword feature of Find It!, teachers can find lesson plans for a variety of math topics for grades 4-12. Many of these plans can be used independently of the TV programs. The site, suitable for grades 4-12, also includes information about how teachers can legally tape the PBS shows for classroom use as well as advance schedules and information about local PBS broadcasting, and ordering PBS videos.

Mathematics. Mathematics created by teachers Georgette Moore and Betty Ganas for grades 5-8, is a multidisciplinary, collaborative project designed around the concept of pi, involving math, history, English, and problem solving skills. The site guides students in discovering the approximate value of pi, using measurement data, formulas, and various problems and activities. The site also provides teacher resources.

PIGS in Cyberspace: Modules. PIGS in Cyberspace, a networking New Brunswick project, features cooperative lesson plan modules developed by teachers for grades 4-8. The math module contains plans for numeration, operations, measurement geometry, data management, and rapid reinforcers.

Plane Math. InfoUse's Plane Math with the support of NASA provides a collection of 19 Internet-based math lessons where students in grades 4-7 learn about aeronautics. Included among the activities for students are finding the shortest path between two cities, determining how many people can board your plane, flying a herd of buffalo to the prairies, and learning to fly a rescue helicopter. The site also includes background information for teachers and a page with links to activities covered.

PlanetK-12: Lesson Plans. PlanetK-12 features a built-in search engine allowing K-12 teachers to select a grade and a subject to find appropriate lesson plans. To find mathematics plans, choose a grade and mathematics, and then click on Retrieve.

Premier Tracks. Premier Tracks offers a collection of K-12 Web-based lessons created by SCR*TEC's TrackStar. To use this tool, teachers enter a list Web site addresses, annotations, and questions for TrackStar to organize them into an online, interactive, ready-to use lesson. The site provides recent Web lessons and a lesson archive created by other teachers.

Prime Time. Georgia Louviere's Prime Time contains a lesson plan with activities for teaching middle school students about prime and composite numbers. Click on Teachers' Notes to find related lessons and other resources.

Probability Project: Take a Chance. The Levering School's (Philadelphia) Probability Project: Take a Chance for grades 5-8 involves hands-on, inquiry based activities with online lessons. The site also includes pictures and quick-time movies of the class doing the project as well as student projects.

Project Center. Houghton Mifflin Project Center, updated weekly, features a variety of online math projects for grades K-12. You can also post your own projects at projects@hmco.com.

Project Interactivate Lessons. The Shodor Education Foundation provides a collection of Internet lesson plans and interactive activities for probability, statistics, functions, and fractals to enrich the middle school mathematics curriculum. Each lesson contains student prerequisites and teacher preparation instructions that include printable student handouts/worksheets and lesson outlines.

ProTeacher. ProTeacher, created by George Hein, contains a collection of lesson plans and other curricular resources for grades K-5. To find math plans, click here and to find multi-subject lesson plan sites, click here. You can also browse for math plans and resources in the Mathematics section.

Resource Village. Resource Village, created by McGraw-Hill for grades K-8, features Web-based lesson plans with printable worksheets for a variety of subject areas. To find math plans and activities, click here. In addition, teachers can ask CyberScout to search the Web for sites that match their math curriculum. Teachers can also join a math forum, MathTalk, to ask questions, share ideas, and extend their thinking about math and math teaching.

Rex Boggs' Exploring Data. Rex Boggs' Exploring Data provides curriculum support materials for secondary teachers of introductory statistics. The site contains activities, worksheets, overhead transparency masters, datasets and assessment to support data exploration. It also includes an extensive collection of articles designed to enhance the statistics knowledge of the teacher.

RHL School. RHL School provides weekly printable worksheets to complement any math program in grades 4-8. You'll find a collection of worksheets for computation and problem solving. Teachers can request a free weekly updated answer key sent by email at keys@rhlschool.com.

Rick's Math Web. Rick's Math Web provides a collection of sequentially-developed, basic skills worksheets in addition, subtraction, multiplication, and division of whole numbers for the elementary school. Each topic includes a tips and tricks as well as a test worksheet. Teachers are allowed to print and recopy this material for use in classrooms.

RITTI: Search of Curriculum Database. Rhode Island Teachers and Technology Initiative (RITTI) provides a searchable database of instructional units contributed by Rhode Island teachers for grades K-12. To view the entire list, click on Find All. To find units for 1998, click on Search of Curriculum Unit Database.

Sabine Parish Teachers' Lesson Plans. Sabine Parish Schools from Louisiana offers a collection of lesson plans designed by their teachers for grades 3-12. On page 1, you'll find math plans on top and bottom of this page, and on page 2, you'll find a lesson plan for the stock market.

Sample Activities Archive. AIMS Education Foundation, in the sample activities archive, provides a collection of interelated hands-on math and science lessons from their publications organized by grade level.

Sample Zome Lesson Plans. Sample Zome Lesson Plans feature a variety of hands-on geometry explorations for students in grades 7-12. Plans include Euler's formula, Kepler's Tilings, Similar Triangles, Shape and Number, and Archimedian Solids.

S & S Software's Free Worksheets for Whole Number Arithmetic. S & S Software provides a collection of over 50 free worksheets for the whole number operations that elementary school teachers can print and recopy for use in their classrooms. Each worksheet is an accompanied be an answer sheet.

Saxon Publishers' Internet Excursions. Saxon Publishers provide Internet Excursions for students in grades 8-12. These online lesson activities, Data Collection and Display and Buying Books on the Internet can complement any math curriculum.

Scholastic In School: Math. Scholastic In School provides a variety of ready-to- use reproducible activities that can complement the elementary school mathematics curriculum. The activities include answers keys and can be used independently of Scholastic materials.

School Express Free Worksheets. School Express, updated weekly for grades preK-6, provides a collection of printable and copyable worksheets for the different subject areas. Teachers will find free worksheets to complement their lessons in mathematics covering the computational skills.

Schoolhouse: Mathematics. Schoolhouse, part of Teacher/Pathfinder, provides a collection of mathematics lesson plans for a variety of topics in grades K-12 including Math Education. You can also search the site for lesson plans.

Schoolzone. The UK's Schoolzone provides a collection of math lesson plans for grades K-12.

Science and Mathematics Initiative for Learning Enhancement (SMILE). The ITT SMILE program, maintained by the Illinois Institute of Technology since 1986, features nearly 800 lesson plans developed by teachers to enhance the elementary and high school learning of science and mathematics. Each plan includes objective(s), the materials needed, a suggested strategy, and expected outcomes. To find over 200 math lesson plans divided into topics, click here.

SCORE Mathematics Lessons. The Schools of California Online Resource for Educators (SCORE) provides a collection of teacher-developed mathematics lesson plans for grades K-12 that support the CA Mathematics Standards and NCTM Standards. Other math plans are included in the yellow margin on the left side of the page. All the lessons are organized by topic and by K-7 and 8-12 categories.

Secondary School Lesson Plans. The Mining Company provides a variety of secondary school lesson plans organized by subject area including Math Plans.

Selected Math Resources by Subject. The Math Forum's Selected Math Resources provides a collection of lesson plans, activities, and interactive resources organized by topic for grades K-12. Each of the seven topics, arithmetic, algebra, geometry, pre-calculus, calculus, prob/stat, and discrete math, includes lesson plans in the section, "Classroom Materials for Teachers and Students". For example, to find arithmetic plans, choose Arithmetic and click on Classroom Materials for Teachers and Students.

Sharing Curriculum. Sharing Curriculum from TeachNet contains over 500 teacher-designed, student-centered hands-on curriculum projects for K-12 classrooms, across all subject areas.

Show-Me Center. The Show-Me Center provides a collection of 60 standards-based mathematics lesson plans for grades 6-8 developed at five NSF-sponsored curriculum development projects. To find these plans, click on Curricula Showcase. You'll need Adobe's free Acrobat Reader to view and print some of the lesson pages. In addition, Encyclopaedia Britannica offers sample standards-based lessons from its Mathematics in Context series.

SBG Math.com. Silver Burdett Ginn Mathematics provides a collection of online lessons to accompany their math textbooks for grades K-6. The chapter-by-chapter lessons include printable activity sheets and answer keys for the teacher as well as printable activity sheets for the student. Al these materials can be used independently of the SBG series.

S.J. Sharkey's Think Tank. The San Jose Hockey Franchise provides S.J. Sharkey's Think Tank containing a collection of 17 cross-curricular lesson plan modules in geography, math, health, and science for grades 4-6. All the lessons are English and Spanish and require the free Adobe Acrobat Reader for viewing and printing. In addition, teacher's can order free of charge an A Answer Book to accompany the lessons by using an online form, by calling (408) 999-5824, or by FAXing a copy of this order form to (408) 999-5797.

Smart Projects. Rhode Island teachers have compiled a list of thematic lessons called Smart Projects where students in grades 2-12 solve real-world mysteries and problems using the Internet. To find math projects, click here or here.

S.O.S. MATHematics. S.O.S. MATHematics from the University of Texas at El Paso contains a wide variety of online worksheets for algebra, trigonometry, calculus, and other advanced math topics for students in grades 7-12. Each exercise includes a set of problems and answers giving clear explanations and appropiate practice so that a student is able to check his/her understanding and monitor his/her progress.

Statistics Education through Quantitative Literacy Project (SEQuaL). The SEQuaL Project from Indiana University of Pennsylvania contains online lessons in probability and statistics for middle and high school teachers.

Statistics Education through Quantitative Literacy Project (SEQuaL). The SEQuaL Project contains online lessons in probability and statistics for middle and high school teachers.

St. Clair County Regional Office of Education. The St. Clair County Regional Office of Education offers hands-on math lessons created by teachers Tom Martin and Leslie Demmert. These lessons are suitable for grades 5-8. In addition, the site includes technology-related math lesson plans developed by elementary preservice teachers.

Stock Market Game. The Stock Market Game Web site, sponsored by the Securities Industry Association (SIA), provides lesson plans that teach the advantages of savings and investing for elementary, middle school, and high school students. The site also offers $tocktalk, an online newsletter with other economic teaching activities. To view and print out the plans and the newsletter, you must download Adobe's free Acrobat Reader. In addition, the site includes The Stock Market Game, a simulation for teaching basic economic concepts used by over 20,000 teachers in 50 states reaching over 650,000 students in grades 4-12.

SuperKids Math Worksheet Creator. SuperKids, from Knowledge Share LLC for grades K-8, provides a free math fact worksheet creator for customizing drill worksheets that teachers can print and recopy to supplement their math lessons. Simply specify the type of addition, subtraction, multiplication, or division, problem for either the counting numbers, the negative numbers, decimals, or fractions and the maximum and minimum numbers to be used in the problems.

Susan Boone's Lesson Plans. Susan Boone's Lesson Plans are Internet-based math lessons and interactive projects for students in grades 6-12 involving real-life situations.

Susan Addington's Home Page. Susan Addington's Home Page provides a variety of geometry lessons of hands-on the author developed to use with prospective middle school math teachers. Topics include constructions with straightedge and compass, polygons (including tessellations) and polyhedra, symmetry and transformational geometry coordinate geometry and measurement, and perspective drawing. Teachers can readily adapt these lesson activities to use with their students in grades 6-12.

Suzanne's Math Lessons. Suzanne's Math Lessons features a collection of interactive lessons and classroom activities for middle school students. Topics include designs with circles, factoring through geometry, algebraic factoring, tesselations, creating magic squares, polyhedra, and fractals.

TAXinteractive. TAXinteractive, a joint venture between the Internal Revenue Service and the American Bar Association for grades 8-12, features a Teachers' Toolkit with a collection of tax related resources to help teachers integrate lessons about taxes into a variety of classroom settings. The site teaches teenagers about the U.S. tax system, the effect of taxes on their day-to-day lives, and new electronic ways to file tax returns.

Teacher's Corner. Teacher's Corner, from IBM for grades K-12, provides monthly thematic Internet-based lesson plans that encourage students to use the Internet to do research in various curricular areas. For a complete list of Internet lessons dating back to 1995, click here.

TeachersFirst Web Content Matrix. TeachersFirst Web Content Matrix, provided by Network for Instructional TV (NITV), offers a collection of math lesson plans for grades K-12.

Teachers Helping Teachers: Math. Teachers Helping Teachers, updated weekly, is a forum where K-12 teachers share lesson plans and activities in math and other subject areas. The site also offers classroom management tips.

Teacher's Place. The Teacher's Place from the Math Forum provides a wealth of lesson plans contributed by teachers for grades preK-12. Click on a grade level in the "Primary & Secondary" section to find individual and lesson plan collections.

Teachers.Net Lesson Bank. The Teachers.Net Lesson Bank provides a searchable collection of over 400 lesson plans and activities contributed by teachers for use with students in preschool through high school. The collection is sorted by grade level and curriculum categories. To find mathematics lesson plans, click here and scroll to "Curriculum and Lessons", or click on browse and use the "Select Category" pull down menu to view lessons for mathematics.

TeachNet.org. TeachNet.org, sponsored by AT&T's IMPACT II, provides daily curriculum projects as well as teacher-designed activitesteacher-designed activites for grades K-12.

Teacher Talk Forum. Teacher Talk Forum, sponsored by Indiana University Center for Adolescent Studies for grades 7-12, provides a collection of electronic lesson plans for logic, reasoning, and problem Solving as well as mathematics.

Teaching & More. Teaching & More provides a collection of lesson plans for grades 2-6. To find mathematics plans, click here. The site also offers units and themes, games, management tips.

Teaching Ideas by Topic. Teaching Ideas by Topic contains a variety of K-12 lesson plans and ideas for teaching algebra from beginning skills to functions to matrices and linear systems.

Teaching Ideas Exchange. Teaching Ideas Exchange, from Canada's SchoolNet, contains a searchable database of lesson plans and teaching materials for grades K-12. To find mathematics plans, click on retrieve an item and search by subject list or by full-text (keyword).

Teaching Ideas for Primary Teachers. Teaching Ideas for Primary Teachers, created by Mark Warner and Craig Gill, contains a collection of math and time-filler activities to complement a K-5 mathematics curriculum. The site also includes worksheets which can be printed and photocopied for classroom use. To find the latest additions, click here.

Teaching is a Work of Heart. Mrs. G's Teaching is a Work of Heart site provides a collection of lessons in various subject areas for grades K-5. The site includes math lessons and filler activities they can use in their classrooms.

Teaching Materials Online. Teaching Materials Online, from the Stewart Resources Centre in Saskatchewan, contains a collection of online thematic instructional units written by Saskatchewan teachers. Click on Mathematics and enter "STF" in the search text to find mathematics units for grades K-12.

Teaching Mathematics in the Middle and Secondary Schools. Teaching Mathematics in the Middle and Secondary Schools contains over 40 lesson plans created by Florida teachers for grades 5-12. Most of the lessons contain detailed explanations and directions, are cross-curricular, and feature practical and real-life situations.

Teachnet.Com. Teachnet.Com, designed for K-12 teachers, provides a collection of lesson planning resources including Lessons Ideas for the various subject areas. The site also offers brainstorming ideas, micro activities, classroom management strategies in the How-To section, and a free email newsletter for sharing and exchanging your tips.

TEAMS Distance Learning: K-12 Lesson Plans. TEAMS Distance Learning, maintainted by the Los Angeles County Office of Education, provides a collection of lessons plan sites for grades K-12 organized by subject. To find mathematics plans, click here. You'll also find other math plans in the multi-subject lesson plan collection.

Technology for the Math Classroom. Technology for the Math Classroom offers sample lessons for integrating technology, computers, and the Internet in secondary classrooms.

Tessellations' Learning Page. Tessellations' Learning Page features lessons on tessellations. To find them, scroll to "Select from the following links ...".

This is Megamathematics: Los Almos National Laboratory. Megamath, developed by Nancy Casey and Mike Fellows, provides seven innovative hands-on math units complete with lessons, activities, and materials for grades 4-12. Topics include knot theory, graph theory, infinity, algorithms, finite state machines, map coloring, and logic. To get an overview and math background for the lessons, click on ABC's of MegaMath .

Tennessee State Frameworks: HOT-LINKED Versions. The Tennessee State Frameworks provides links to math lesson plan sites for grades K-2, 3-5., and 6-8.

TI Classroom Activities. Texas Instruments (TI) provides a searchable collection of math lessons and activities contributed by teachers using TI instructional calculators in grades 6-12. The William Paterson University in New Jersey also offers graphing calculator lesson plans for grades 9-12.

Tom's Scavo's Home Page. Tom's Scavo's Home Page contains the author's geoboard, tangram, and statistics lessons for grades 5-8.

Tools for Understanding. The University of Puget Sound's Tools for Understanding provides a wide variety of middle school math lessons for integrating technology in grades 5-8. The math concepts covered include spreadsheet basics, calculator activities, fractions, geometry, functions, and other common pre-algebra topics. The site also offers journaling lesson plans.

Tony's Awesome Lesson Plans & Learning Activities. Tony Tin provides a collection of lesson plan sites for K-12 including math.

Topic Tours: Paths Through Resources. The Math Forum provides a collection of lesson plans and other K-12 teaching resources for fractions and measurement.

Tried *n* True Model Lesson Plans. Tried *n* True, from the North Carolina Department Public Instruction, is a collection of lesson plans contributed by teachers for grades K-12. To find mathematics plans, select a grade level and click on a key in math column of the table.

TRMS Lesson Plans. Taylor Road Middlle School (TRMS) in Fulton County, Georgia provides a collection of Internet-based lesson plans for grades 5-8. For math plans, click here.

UALR College of Education Online: Lesson Plans. The University of Arkansas at Little Rock (UALR) College of Education provides a collection of lesson plan sites as well as seven search engines for finding lesson plans for grades K-12. To use a search engine, scroll to Find Lesson Plans yourself... and select a blue triangle in the math column of the table.

U.S. Shirts Problem. The U.S. Shirts Problem, developed for the Pittsburgh Urban Mathematics Project (PUMP), is a three day lesson module for first year algebra students involving real-life problems.

Web Classroom. Eagle Eye Web Masters' Web Classroom provides a variety of online mathematics lessons that include diagnostic tests, interactive exercises, and workbooks for grades 6-12. At the middle school level, you'll find fraction lessons with accompanying riddle worksheets, and at the senior high school level, you'll find algebra and geometry materials containing interactive tests as well as workbooks with immediate feedback on your answers.

WebQuest Page. Bernie Dodge's WebQuest Page contains a collection of an interdisciplinary Web-based lesson plans (WebQuests) for grades K-12. Each WebQuest includes teacher directions as well as self-instructional student activities using the Web. To find mathematics WebQuests, click on Matrix of Examples. For a listing of WebQuest lessons, click here.

WVIZ NTTI Studies in Mathematics. WVIZ NTTI provides a collection of math lesson plans developed by teachers for grades K-6.

wNetSchool Original Lesson Plans: Math. wNetSchool, updated monthly, provides original Internet-based math lesson plans developed by teachers for grades 5-12.

Wonderful Ideas. Wonderful Ideas, a math newsletter for grades 3-8, provides a collection of printable lesson activities and math problems for use in grades 3-8.

Worksheet Generator. Michael Thompson's Worksheet Generator, an easy-to-use fexible tool for grades 4-8, creates online printable math worksheets for individual students or the whole class. Each worksheet can have up to 50 problems with a variety of whole number, integer, equation, greatest common factor, or least common multiple problems. Each worksheet also includes a heading, a page layout, as well as an an accompanying answer key.

WorksheetMaker! Robert Bunge's WorksheetMaker generates online whole number practice worksheets in addition, subtraction, multiplication, and division for students in grades 2-7. Teachers can print and recopy these worksheets to use with their classes.

World School: Lesson Plan Web Sites. The World School, created by the West Virginia Department of Education, provides a collection of general lesson plan sites that include mathematics for grades K-12.

WWW Research Lessons Library: Mathematics. The WWW Research Lessons Library provides a collection of online mathematics lessons for grades K-12 created by Washington state teachers. To view a list of all the lesson titles organized by grade level in the library, click here. The site also includes a rubric to help teachers design and create their own Internet lessons.

Yale-New Haven Teachers Institute. The Yale-New Haven Teachers Institute offers a collection of hundreds of curriculum units for grades K-12 prepared by teachers attending summer workshops from 1978 to 1997. Many of the units include lesson plans, student handouts, and specific classroom ideas. You can find mathematics units using a thematic directory, an alphabetical topical index, or the site's own search engine which is located in the mddle of this page.

Yes, I Teach. Yes, I Teach, from the FEA/United Organization for grades K-12, contains lesson plan ideas and teacher tips submitted by teachers.

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