Guide to the best online math resources covering topics from counting to calculus and beyond. These resources provide a range of materials including videos, interactive lessons, and games.

  • Abacus
    Detailed introduction to the Abacus. History, interactive tutorial, and more. - Grades: 3-12
    Applied math and science education repository with links to outstanding resources. - Grades: 9-12 & Higher
  • Brightstorm: Math
    More than 2,000 short-form online video lessons by professional math teachers. - Grades: 6-12
  • Brilliant
    Interactive challenges that build quantitative skills in math, science, and computer science. - Subscription Required
  • CanFigureIt Geometry
    Interactive workspace where students can practice geometry proofs and exercise deductive reasoning.
  • Coolmath 4 Kids
    Games, lessons and more, designed to teach math to children 12 and under. - Grades: K-8
  • Double Division
    Very creative variation on long division that reduces common frustrations. - Grades: 2-12
  • Euclid
    Theoretical and applied mathematics and statistics journals. - Higher Education
  • Figure This!
    Interesting math challenges for middle school students to try at home. - Grades: 5-9
  • Free Math Help
    Math lessons, math games, and homework help message boards. - Grades: K-12
  • Illuminations
    Math resources for teachers, educators, and administrators. - Grades: K-12
  • Inside Mathematics
    Video lessons and worksheets aligned with Common Core standards. Exceptional resource.
  • LibreTexts: Math
    Open access textbooks in math, science, and the humanities.
  • Math Dictionary for Kids
    Very creative and concise guide to hundreds of math concepts. - Grades: K-5
  • Math Planet
    High school math courses in Pre-Algebra, Algebra 1, Algebra 2 and Geometry.
  • Math TV
    Professional video lessons in mathematics. Covers basic math through calculus.
  • Microsoft Math Solver
    Step-by-step solutions to math problems with camera-based import option.
  • Plus Magazine
    Articles on mathematics and its applications to science, art and society. - Grades: 9-12 & Higher
    Step-by-step solutions to math problems. Optional mobile app for photo input.
  • Socratic by Google
    Visual explanations of important concepts in math, science, literature, and more.
  • SplashLearn
    Highly engaging and personalized math learning programs organized by grade level. - Grades: K-5
  • Stack Exchange: Mathematics
    Online math question-and-answer site with an active community. - Grades: 9-12 & Higher
  • That Quiz
    Hundreds of free online quizzes to test your math knowledge. - Grades: 6-12
  • Triple A Math
    Interactive math lessons on subjects ranging from addition to exponents. - Grades: K-8
  • WebMath
    Generates easy-to-understand explanations to math problems in real-time. - Grades: 2-12
  • Wolfram MathWorld
    Authoritative resource for math definitions and explanations of concepts. - Grade 2-12 & Higher   |  Also see: Wolfram Alpha

Math Games

  • Arcademics
    Skill-building math and language games including online multiplayer competitions.
  • Bedtime Math
    A new fun math problem every day that parents can use to challenge their kids at bedtime.
  • Braingenie
    Game-based site teaching math and science with real-time multiplayer challenges.
  • Cool Math
    Math games, puzzles, and lessons. From pre-algebra to pre-calculus. - Grades: 9-12 & Higher
  • Math is Fun
    Math explained in easy language. Puzzles, games, worksheets, and an illustrated dictionary. - Grades: K-5
  • Math Playground
    Interactive math lessons on subjects ranging from addition to exponents. - Grades: K-8
  • Quick Brain (Brainsoft)
    Solve math problems and compete against players from around the world. - App Only