Mathematica needs you! Add, subtract, divide and multiply your way to victory. Meet the Karate Cats and practice spelling, grammar and punctuation as you chop, kick and smash the challenges. Join ...

Manipulatives can be a powerful tool in any mathematician’s toolbox. Just as we might take a screw or a wrench to fix a squeaky chair, we can use manipulatives to help solve math problems. We may see ...