Math Games - Math Games is a website which kids in Preschool through 8th grade can practice math.
Sketch This - Daily drawing challenges
DragonBox Algebra - DragonBox Algebra 5+ - The educational game that secretly teaches you algebra.
ChalkMotion - Create animated doodle slideshows
Cool Math Endless Run - Cool Math Endless Run is a monster math game and an endless run adventure.
Cycloid Drawing Machine - A mesmerising spirograph-like web app