Wolfram Research
Wolfram Math World: World's Most Extensive Mathematics Resource
MathWorld provides a huge mathematics encyclopedia detailing the concepts of geometry, algebra, calculus, discrete math, number theory, and other math topics--complete with formulas, diagrams, examples, and references for thorough...
Rice University
Rice University: Cynthia Lanius: Fun Mathematics Lessons
This resource has mathematics lessons for different levels, from counting to slope. In English and Spanish.
Math TV
Weekly Math Tv Problem Solving Videos
This resource offers two different topic problems per week for students to solve. A video showing the method to solve each problem is given. After viewing a solution method for solving the problem try one on your own where you can only...
Maths Challenge
Maths challenge.net: Problem Solving Database
Need some challenging problem-solving work for your students in the following areas: Discrete, Geometry, Numbers, and Code Breaking? This is the place for an enormous database of problems aimed at high school age students. They are...
Other
Problems in the Points Contest of Ko Mal
Learn about the annual KoMal competition in mathematics, physics, and information technology, and challenge your ability to solve problems involving advanced algebra, logic, and other related topics through the tests provided at this site.
Discovering Egypt
Discovering Ancient Egypt: Egyptian Mathematics Numbers Hieroglyphs
Challenge yourself and see if you can solve these math problems using Egyptian hieroglyphics. Egyptians excelled in mathematics and this lesson will help you understand hieroglyphic numbers. A podcast is included that explains the Rhind...
National Council of Teachers of Mathematics
The Math Forum: Famous Problems in the History of Mathematics
On this site, there are several math problems to explore and solve. Look through some solutions by famous mathematicians and expand your thinking about some interesting math concepts. Teachers of elementary grades may want to use this...
Math Playground
Math Playground
A collection games, word problems, logic puzzles, and math videos that elementary and middle school students can practice their math skills. Model math problems using blocks, work with online flash cards, complete worksheets, and more.
Math Medics
S.o.s. Math: Math Review Resources
A math tutorial for many areas of math that contains over 2,500 pages of explanations and examples in algebra, trigonometry, calculus, and basic mathematics. Also has exams and ask-an-expert function.
Other
Georgia Perimeter College: Linear Equations and Inequalities in One Variable
This resource provides a look at linear equations and inequalities, from how to solve them to how to use them as models for word problems, with lots of examples.
National Council of Teachers of Mathematics
The Math Forum: Math World Interactive
MathWorld Interactive "Is a FREE project where students in grades 6 to 8 from around the world work on open-ended problems." Go to the Frequently Asked Questions section for an easy introduction.
Ducksters
Ducksters: Kids Math: Solving Algebra Equations With Addition and Subtraction
Kids learn about Solving Algebra Equations with Addition and Subtraction. Add and subtract from both sides. Example math problems are shown on page.
Ducksters
Ducksters: Kids Math: Solving Algebra Equations With Multiplication and Division
Kids learn about Solving Algebra Equations with Multiplication and Division. Multiply or divide from both sides. Example math problems are found on the site.
Other
Epsilones: Problemas Pi
Use logic or your knowledge of mathematics to solve this collection of math problems. Solutions are provided. [In Spanish]
National Council of Teachers of Mathematics
The Math Forum: Math Magic
Comprehensive site of MS Word files that are easy to download which increase problem solving skills using technology in the classroom.
National Council of Teachers of Mathematics
The Math Forum: Math Magic
Comprehensive site of MS Word files that are easy to download which increase problem solving skills using technology in the classroom.