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Project Interactive - Shodor Education Foundation, Inc.

Grades
3 to 8
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Middle school math teachers can find a wealth of ideas for teaching number and operation conceptions, geometry, and algebra in this collection of computer-based lessons, based on NCTM...more
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Middle school math teachers can find a wealth of ideas for teaching number and operation conceptions, geometry, and algebra in this collection of computer-based lessons, based on NCTM standards. A separate section of activities and corresponding lessons are geared for students in grades 3 - 5. Each activity is accompanied by WHAT, HOW, and WHY links that provide background information, instructions, and curriculum context. The Discussion section is especially helpful. Click on a topic and read through a brief dialog that exposes common student misconceptions and presents practical ideas for introducing or explaining a concept. Be sure to visit Teacher Resources section for some useful tips on using these interactive materials with your math students.

tag(s): operations (72)

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Math Projects

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7 to 12
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Spice up your pre-algebra, algebra, or geometry classes with the tips and ideas for interactive projects found on this site. Many of the downloadable lesson plans draw connections to...more
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Spice up your pre-algebra, algebra, or geometry classes with the tips and ideas for interactive projects found on this site. Many of the downloadable lesson plans draw connections to other content areas: an ancient Greek myth is tested with the help of some modern math; track and field activities become the focus of a lesson on arc length. No answer key is provided for the math problems, so plan accordingly!

tag(s): equations (118), operations (72), problem solving (225)

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Nrich - Cambridge University

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1 to 12
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This collection of games, and articles is designed to challenge students to use their problem solving skills. Activities are organized according to UK education system levels, but click...more
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This collection of games, and articles is designed to challenge students to use their problem solving skills. Activities are organized according to UK education system levels, but click on Help for an easy conversion guide. Each problem includes a question, related pictures or diagrams, a form for students to submit their solution, and helpful hints and notes for parents and teachers. A weekly challenge is also offered. Complete the free registration to participate in a discussion forum, pose questions online, or post messages.

tag(s): problem solving (225)

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Quiz Hub

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1 to 12
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Students can test their core knowledge of English, French, German, math, social studies and more with this entertaining collection of interactive quizzes, puzzles and games. Click on...more
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Students can test their core knowledge of English, French, German, math, social studies and more with this entertaining collection of interactive quizzes, puzzles and games. Click on the Learning Hub and select a level (elementary, middle school, or high school) to explore age-appropriate challenges across content areas. Many of the activities on this site are free, but registration and a fee are required to access some of the special features.

tag(s): quiz (65), quizzes (89)

In the Classroom

Use the free quizzes to help students review OR as pre-diagnositc quizzes to determine what students already know about the topic. This is a great way to assess which areas need strengthening and which areas students need less help in. Teachers wanting to focus their classrooms more efficiently will appreciate this one.

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Mighty Mouth-watering Math

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4 to 8
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Chocolate can be a great motivator when learning math concepts. Use this fun and tasty activity to teach students about fractions and percentages using M&M-like candies. Students must...more
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Chocolate can be a great motivator when learning math concepts. Use this fun and tasty activity to teach students about fractions and percentages using M&M-like candies. Students must calculate the percentage of each color in a bag, and determine whether or not those percentages are the same worldwide. Tabulated results can be posted online. Suggestions for extending the activity are provided.

tag(s): fractions (158), percent (59)

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Dictionary of Units

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2 to 12
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This online dictionary of units of measurement is a handy resource for understanding the differences between the international system, the metric system, and U.S. system of measures....more
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This online dictionary of units of measurement is a handy resource for understanding the differences between the international system, the metric system, and U.S. system of measures. Discussions concerning conversions from one system to another are provided along with 40 different calculators (each devoted to converting units in a particular category) and a helpful downloadable pocket guide.

tag(s): measurement (123)

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Cool Math for Kids

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4 to 8
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Students can practice and review skills related to basic geometry, fractions, logic, and problem solving with these fun and interactive activities. Highlights include a virtual lemonade...more
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Students can practice and review skills related to basic geometry, fractions, logic, and problem solving with these fun and interactive activities. Highlights include a virtual lemonade stand game (manage your own business to make a profit!), a collection of thought-provoking "Brain Benders," and "ArithmATTACK" - a computer driven game that challenges kids to see how many arithmetic problems they can answer in one minute.

tag(s): fractions (158), logic (161)

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NCES Classroom - National Center for Education Statistics

Grades
2 to 8
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From the interactive menu of this engaging site, students can choose to test their math/science knowledge, take a quiz that matches their likes and dislikes with those of a famous ...more
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From the interactive menu of this engaging site, students can choose to test their math/science knowledge, take a quiz that matches their likes and dislikes with those of a famous mathematician, learn about probability, complete a word search puzzle, or learn a new Word of the Day. The Crunch link takes visitors to an on-line magazine that features student created articles, art and technology reviews, and creative writing. Use this resource as a stand-alone independent activity for your elementary and middle school students, or to enrich a math or science lesson. There are even a few links and fun facts for teachers!

tag(s): probability (98)

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Math Cats - Wendy Patti

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2 to 8
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This collection of playful, interactive activities covers a wide range of math skills: story problems, principles of geometry, fractions, multiplication, big numbers, symmetry and tessellations,...more
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This collection of playful, interactive activities covers a wide range of math skills: story problems, principles of geometry, fractions, multiplication, big numbers, symmetry and tessellations, and much more! Virtual "math cats" prowl around, explaining various concepts and special features. There is a lot to explore on this site! Two particularly impressive sections include Math Crafts, a collection of creative math-related projects, and Microworlds, a selection of downloadable interactive games.

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Tessellations

Grades
6 to 12
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The beauty and mathematical precision of tessellations come alive in this site that celebrates these unique and compelling designs. Basic information about tessellations is provided,...more
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The beauty and mathematical precision of tessellations come alive in this site that celebrates these unique and compelling designs. Basic information about tessellations is provided, along with a biographical profile of M.C. Escher, and a list of resources providing more in-depth information. The Gallery contains a number of tessellations created by Escher and others. Especially of interest to teachers and students is an instructional section that explains how to make tessellations using a variety of materials and constructions. Created by David Annal.

tag(s): optical illusions (10)

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Mission: Biomes - NASA

Grades
3 to 8
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This site builds on student knowledge of math, science, and world geography while introducing the concept of biomes. Using photos, fact sheets, and descriptive texts, students can explore...more
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This site builds on student knowledge of math, science, and world geography while introducing the concept of biomes. Using photos, fact sheets, and descriptive texts, students can explore seven diverse biomes and discover where in the world they can be found. Two interactive missions are designed to test student knowledge. Activities relate directly to National Science, Math, and Social Studies standards. Created by NASA

tag(s): biomes (109), ecosystems (80), environment (246)

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Slates, Slide Rules, and Software: Teaching Math in America - Smithsonian

Grades
7 to 12
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Create an interdisciplinary link between math and social studies with this informative site that chronicles the development of teaching tools to help students master abstract mathematical...more
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Create an interdisciplinary link between math and social studies with this informative site that chronicles the development of teaching tools to help students master abstract mathematical concepts. Simple text and graphics make this a very usable site for students of any level. Created by the National Museum of American History

In the Classroom

Use this site as a learning center or station at the beginning of the year in an algebra class to get students thinking about the materials they use and how they can aid learning. This could be a fun accompaniment to syllabus-day or later on in the first week.

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Cryptography - Historical Ciphers - Trinity College, Hartford

Grades
6 to 12
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This presentation by students and faculty at Trinity College, Hartford includes discussions of some of history's more famous cipher and encryption machines, including the infamous German...more
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This presentation by students and faculty at Trinity College, Hartford includes discussions of some of history's more famous cipher and encryption machines, including the infamous German enigma machines. Along the way, there's a presentation on some of the basics of encryption. Students interested in math or computer security will find this one an interesting introduction to a hugely complex topic.

tag(s): cryptography (5)

In the Classroom

Use this site as a quick lesson during a history or statistics class, in an attempt to teach students about how some ciphers were solved and how it affected history. Peruse a few of the ciphers as a class on the interactive whiteboard, as a challenge have students try to make or solve one on their own! Students can present their ciphers on the interactive whiteboard, and try to stump their peers!

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Math Page

Grades
6 to 12
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Created by a community college professor, this site offers nicely segmented introductions and reviews for topics ranging from basic arithmetic through pre-calculus, trigonometry, and...more
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Created by a community college professor, this site offers nicely segmented introductions and reviews for topics ranging from basic arithmetic through pre-calculus, trigonometry, and number theory. Secondary teachers might find this one a useful site as a refresher prior to the introduction of new concepts or for students who need a little "brushing up."

tag(s): addition (127), angles (51), decimals (84), division (97), equations (118), fractions (158), geometric shapes (135), logic (161), multiplication (121), percent (59)

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SimpsonsMath

Grades
6 to 12
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Like them or not, the Simpsons do talk about math from time to time. One enterprising math instructor has indexed the mathematical discussions of Homer and his family based on ...more
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Like them or not, the Simpsons do talk about math from time to time. One enterprising math instructor has indexed the mathematical discussions of Homer and his family based on the DVD recordings now available. If you're both a dedicated fan and creative in your math lessons, you might find this one useful.

tag(s): comics and cartoons (55)

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Archimedes' Laboratory Puzzles

Grades
6 to 12
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With puzzles to make, puzzles to solve, and optical illusions to observe, this interactive site puts brains and eyes to the test. The site also has a maze maker, math ...more
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With puzzles to make, puzzles to solve, and optical illusions to observe, this interactive site puts brains and eyes to the test. The site also has a maze maker, math games, word games, and tricks to perform. The "Puzzles to make" section has detailed directions and printable instructions for using these puzzles in the classroom.

tag(s): puzzles (143)

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Math World - Wolfram

Grades
7 to 12
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This latest edition of a site that's been around for many years offers users a concise guide to secondary mathematics and its applications, from algebra to topology, statistics, number...more
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This latest edition of a site that's been around for many years offers users a concise guide to secondary mathematics and its applications, from algebra to topology, statistics, number theory, and more. We particularly like the conciseness of the explanations. Students who need another look at a concept will almost certainly find something useful here.

tag(s): probability (98), statistics (120)

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Balanced Assessment in Mathematics - Harvard University

Grades
1 to 12
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Harvard University's Graduate School of Education offers this collection of downloadable mathematics assessment tools for grades K-12. This collection includes a number of technology-based...more
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Harvard University's Graduate School of Education offers this collection of downloadable mathematics assessment tools for grades K-12. This collection includes a number of technology-based tools. Each assessment is a Word document. Rubrics are provided for each assessment task.Users should note that these are intended for preview purposes.

tag(s): assessment (152)

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Mathematical Art of M.C. Escher

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6 to 12
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This site offers a detailed biographical treatment of Escher's work in illustrating perceptual and spatial phenomena and illusions. The site will be useful both for art instruction...more
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This site offers a detailed biographical treatment of Escher's work in illustrating perceptual and spatial phenomena and illusions. The site will be useful both for art instruction and for math or science study. We were delighted to find illustrations large enough to show the intricacies of these images. Even younger students will respond to, "What's going on in this picture?" discussions of these images.

tag(s): perspective (13)

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Prime Curios - University of Tennessee at Martin

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6 to 12
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This personal site from the University of Tennessee at Martin offers an extensive look at some of the more interesting prime numbers - long a fascination for mathematicians. ...more
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This personal site from the University of Tennessee at Martin offers an extensive look at some of the more interesting prime numbers - long a fascination for mathematicians.

tag(s): numbers (119), prime numbers (26)

In the Classroom

If you have students who enjoy "messing with numbers," turn them loose on this one.

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