CK-12 Foundation
Whole Number Exponents: Teddy Bear Box
Five questions—multiple-choice, fill in the blank, and discussion—make up an interactive that challenges scholars to mail a teddy bear using the smallest box possible without squishing it. A box with movable sides allows mathematicians...
Mr. Martini's Classroom
Mr. Martini's Classroom: Mr. Martini's Classroom: Adding Objects
Practice addition facts 1 to 9 with numbers and pictures in this interactive game.