• CanYouKenKen IMAGE RotatingBanner

    Featured Lesson Plan

    You asked, and we listened—improve arithmetic and reasoning skills using this brand new pre-K–grade 1 lesson!

    read more
  • EquivalentFractions IMAGE MainCarousel

    Featured Mobile Game

    We've released Equivalent Fractions back into the iTunes store—download it today!

    read more
  • BunnyTimes IMAGE MainCarousel

    Featured Interactive

    Pre-K–Grade 5: Become confident in facts up to 12 x 12 using visual models that stress the conceptual aspects of multiplication.

    read more
  • YesOrNo IMAGE MainCarousel

    Featured Brain Teaser

    Ask a friend to pick a number from 1 through 1,000. After asking him ten questions that can be answered yes or no, you tell him the number. What are those questions? 

    read more

Challenge others. Challenge yourself.®

Calculation Nation

Play online math strategy games against players from around the world.

4 gamers currently online

Test your skills.
Tease your brain.

Monkey

Challenge students and mathematics enthusiasts with these puzzles.

Your Success Defines Our Success.

SuccessStoryThumb

Read and share experiences of how people have used Illuminations’ resources.

Bright Ideas Sign-up

Welcome to Bright Ideas, the e-newsletter of Illuminations. Once a month, this newsletter provides resources, information and new ideas to interested teachers.