If you have a favorite site that you'd like us to add to this list, send it email@example.com. Be sure to include a brief description of what's available at the site, the grade level(s) it targets, and why you think it's a great resource.
NCTM: Illuminations Lessons (http://illuminations.nctm.org/) All Grades, Pre-K-2, 3-5, 6-8, 9-12. All Standards, Number & Operations, Algebra, Geometry. Resources galore, including 63 Online activities, 487 lessons, and hundreds of Web links. For example in Turtle Pond, students guide a turtle into a pond using angles and measurements
AAA Math (http://www.aaamath.com/) Basic Math Skills for K-5. Topics include: Addition, Algebra, Comparing, Counting, Decimals, Division, Equations, Estimation, Exponents, Fractions, Geometry, Graphs, Measurement, Mental, Math, Money, Multiplication, Naming, Numbers, Patterns, Percent, Place Value, Practical Math, Properties, Ratios, Statistics, and Subtraction.
Misunderstood Minds: Basics of Mathematics (http://www.pbs.org/wgbh/misunderstoodminds/mathbasics.html) Interesting perspective on brain functions involved when children play with numbers. Includes several hands-on examples. Discusses Math and Memory, Math Attention, Temporal-Sequential Ordering, and the Developing Math Student. Be sure to click the links to Difficulties with Mathematics and Responses to the Problem for strategies to try with students.
Math Snacks (http://mathsnacks.org/). Short animations and mini-games designed to present mathematics in a very different way. Project of New Mexico State University, currently funded by a K-12 Discovery Learning grant from the National Science Foundation
ICT Magic (http://ictmagic.wikispaces.com/Maths). A good maths website from the US with online questions, worksheets and factsheets on a range of numeracy topics, including addition, subtraction, multiplication, division,and fractions.
National Library of Virtual Manipulatives (http://nlvm.usu.edu/en/nav/vlibrary.html) A site for pre-k thru 12 to search for activities related to Number & Operations, Algebra, Geometry, Measurement, Data Analysis and Probability.
ArithmAttack (http://www.dep.anl.gov/aattack.htm) A site for quick math games, facts, flashcards, multiplication tables. How many answers can you get correct in one minute. (Standard 3.n.9. Know multiplication facts through 10 x 10 and related division facts, e.g., 9x8=72 and 72)
Count us In (http://www.abc.net.au/countusin/default.htm) A site for elementary students that teaches number recognition, counting, patterns, etc. Consists of interactive games, etc. These games help children understand basic number concepts.
Kid's Place: Houghton Mifflin-Mathematics (http://www.eduplace.com/kids/mhm/index.html) Houghton Mifflin mathematics site, teaching math concepts through fun activities and interactives. Students take tests, do test prep and crunch numbers through brain teasers.
NCTM Illuminations (http://illuminations.nctm.org/) Hosted by the National Coalition of Teaching Mathematics Organization and dedicated to improving math education for students in grades PreK-12, this site boasts math games, activities, lessons, standards, and Web links to other great math sites. Especially wonderful for learning shapes and geometry. Probability and ratio is also impressive for even young students.
Project Interactivate for Elementary Grades 3-5 (http://www.shodor.org/interactivate/elementary/index.html) Java-based interactives to helps elementary schoolstudents
explore science and mathematics. The activities are aligned to popular textbooks and to NCTM and NCEE standards. Concepts targeted include: Number and Operation, Geometry and Measurement, Function and Algebra, and Probability and Data Analysis.
Algebra: Equations, linear, Functions, Compare & Contrast, Graphs of Lines , Modeling Problems, Patterns, Problem Solving using Symbols, Rate of Change, Representations, Variable,
Geometry: 2-D and 3-D figures, properties, , 2-D representations of 3-D figures, Connections to other disciplines, Coordinate Geometry, Geometric models of algebraic concepts, Induction and deduction, Networks, Scale Drawing, Similarity/Congruence, Transformations,
Measurement: Angles and Length, Area and Circumference, Estimation, Metric and Customary Units , Rates and Velocity, Scale factors , Surface Area & Volume, Units,
Number: Compare and order decimals, fractions, percents , Factors, Integers , Large numbers and notation , Percentages >100 and <1, Ratio and proportions, Solve problems with decimals, fractions, percents; Statistics & Probability Averages, Centers and Spreads , Collecting Data , Complementary and mutually exclusive events , Formulate Questions, Graphical representations of data, Make conjectures about differences , Make conjectures about relationships , Probability.
Math in the News (http://www.ams.org/mathmedia/) American Mathematical Society collects news stories about math in the real world, including image of the month. Some stories are really obscure, but some are totally awesome!
We All Use Math Every Day The CBS television hit show Numb3rs (http://www.cbs.com/primetime/numb3rs/) features a mathematician who makes use of complex theories to help the FBI solve crimes. Cornell University offers activities based on the show (http://www.math.cornell.edu/~numb3rs/). NCTM (National Council of Teachers of Mathematics recently teamed with Texas Instruments (TI) and Numb3rs' producers to launch a new classroom companion web site and curriculum based on topics featured in the show (http://everythingisnumb3rs.eponym.com/blog/_archives/2006/11/22/2519519.html). The TI site also boasts fun and challenging interactive math activities (http://education.ti.com/calculators/downloads/US/Activities/Search/Keywords?k=numb3rs) Reminds me of SquareOne TV's MathNet, "Founded 1985 'to cogitate and to solve'..."The story you are about to see is a fib, but it's short. The names are made up, but the problems are real," starring the calculator-wielding detective George Frankly.
WebQuest Examples: Grades 9-12 Math (http://webquest.sdsu.edu/matrix/9-12-Mat.htm) Project -based Web Quests on a variety of topics including: Best Mathematicians You've Never Heard Of, Buying Your First Car, Evaluating Math Games, Building a scale model of the pyramids, Planning and budgeting a class trip to Disneyworld, Setting up a personal budget and more
The Math Forum - Math Library - High School (http://mathforum.org/library/levels/high/) Math activities for a variety of topics, including algebra, pre-calculus, probability, early math, and problem of the week…so how many different ways can Wendy use 31 legs to build wooden dollhouse furniture?
National Library of Virtual Manipulatives (http://nlvm.usu.edu/en/nav/grade_g_4.html) Virtual manipulatives related to the NCTM standards for grades 9 - 12 in. Number & Operations, Algebra, Geometry, Measurement, Data Analysis and Probability.
TeachersFirst Resource Listings-Math (http://www.teachersfirst.com/tchr-subj-date.cfm?subject=math&lower=9&upper=12) A variety of math teaching resources for real world math applications. For example, "Flashy Algebra" presents a series animated lessons with narration on how quadratic formulas are derived and how quadratic equations are plotted in Cartesian coordinates. Lots of math quizzes too.
Interactive Mathematics Miscellany and Puzzles (http://www.cut-the-knot.org/content.shtml) Great puzzles for playing with all sorts of numbers and operations. My favorite "Breaking Chocolate Bars" (http://www.cut-the-knot.org/proofs/chocolad.shtm) "Assume you have a chocolate bar consisting, as usual, of a number of squares arranged in a rectangular pattern. Your task is to split the bar into small squares (always breaking along the lines between the squares) with a minimum number of breaks. How many will it take?"
Math.com Puzzles, Games, and Contests: Exercise Your Brain and Have Fun, Fun Fun! (http://www.math.com/students/puzzles/puzzleapps.html ) Math games and puzzles from all over the world. Games include Peg Solitaire, Fiver, Tower of Hanoi, Hare and Hounds and more Java plug-in required.