Open Directory - Kids and Teens: School Time: Math
See also: This category in other languages: [ ] - An animated, interactive math dictionary defining common math terms and concepts. [Requires Flash 5] [ ] - Helps students improve their math skills interactively with flashcards and games. Also provides worksheets and homework help. [ ] - An online mathematical high school. Arithmetic, algebra, geometry, trigonometry, functions and graphs, analysis. Theory and solving problems. Also has practice exams and math jokes. [ ] - Features free flashcards, a magic square game, biographies of mathematicians, and other resources. [ ] - Offers tutorials on a variety of math topics including subsets, permutations, and Fibonacci sequences. [ ] - Offers games on counting, telling time, making change, measurement, and shapes. [ ] - Calculators for a variety of subjects, including measurement conversion, interest, distance, time zones, and currency. [ ] - A collection of free Java-based measurements converters, calculators, and unit translators. [ ] - Math games, problems, calculators, puzzles, and fun and for all levels. [ ] - Explains the unusual concept of partial dimensions and shows comparisons to a dot, line, plane and cube. [ ] - Interactive lessons and exercises, open-ended questions, printable worksheets, and challenging problems sorted by topic and grade range. [ ] - Learn about numbers, measurement, money, tables and formulas. Includes conversion calculator, games and quizzes. [ ] - Interactive Director movie comparing a fugue by Johann Sebastian Bach to a fractal. [ ] - Provides detailed descriptions of all the common subjects, concepts, and theorems, with examples and graphics to help explain the material. [ ] - Animated and illustrated definitions of math terms for elementary school students. Organized by grade level and alphabetically. [Requires Flash] [ ] - Provides information on the kinds of jobs available for kids interested in math. [ ] - Online exercises through which children can explore and examine math concepts while at home. [ ] - Features opinion polls, study tips, online math games, word problems, glossary, and interactive puzzles. Includes different sections for levels from kindergarten through the sixth grade. [ ] - Free downloadable flash card game for children aimed at improving their mathematics skills with lessons aimed at various age groups. [ ] - Ask Dr. Math questions, or try your hand at the weekly puzzlers. [ ] - Features interactive math lessons, homework help, worksheets, puzzles, message boards, and newsletters. [ ] - Interactive activities and quizzes in basic arithmetic, algebra, and trigonometry. Also includes brain teasers and puzzles. [ ] - Features printable worksheets for students to practice with. [ ] - Covers concepts that are used in algebra and geometry, as well as an overview of calculus terms. Includes explanations on how to use the number line, working with formulas, fractions, square roots, graphs, parallel lines, triangles and areas. Also has a message board and short quizzes. [ ] - Virtual exhibit looks at the ways people use math every day, from cooking to planning for retirement. [ ] - Offers free math lessons and homework help, with an emphasis on geometry, algebra, statistics, and calculus. Also provides calculators and games. [ ] - Interactive exhibits include polygon dissection and stick sorting. [ ] - Tips for solving word problems for K-5th graders. [ ] - Includes lessons, games, puzzles, and offline activities. [ ] - This site has been created so that students can have fun and practice math. Includes lessons in addition, subtraction, multiplication, geometry. [ ] - Learn how to use expressions to represent numbers, work with variables and create special drawings to represent equations. Also has a brief introduction to trigonometry and curve fitting. Includes interactive graphs. [ ] - Use this tool to find answers to math-related problems. [ ] - Explains the role of math in investing, music, history, science, and travel. Includes stock simulation game. [ ] - Learn basic concepts behind arithmetic, algebra and geometry. Includes some SAT test preparation help and math trivia. [ ] - Explains the properties of fractal graphic images that can be created with special formulas. Also, introduces chaos theory and infinity. Offers free online help. [ ] - Produced by Charles and Ray Eames, the video "Powers of Ten" has been converted into web images. Explores over 42 powers of ten in a series of images, beginning with a photo of someone lying on the grass. Shows the scale of the universe and atoms. [ ] - Math problems that tell a story about a frog named Ribbit. For K-8. [ ] - A large collection of interactive worksheets that allows kids to practice basic math skills. [ ] - Introduces the abacus, relates its history, and shows how to perform basic mathematical operations on it. Also answers questions about the ancient tool and shows how to build one with Legos. [ ] - A collection of educational math games and lessons for pre-algebra, algebra, and geometry. Includes practice problems and drills, a math dictionary, and a humor section. [ ] - Have fun solving problems concerning rates, measurements, shapes, money, fractions and time. Page includes hints and solutions. [ ] - Features a collection of math games, forum,and a list of jobs that need math. [ ] - A selection of common mistakes made by students in algebra, trigonometry and calculus.
