The goal of this instructional activity is for middle schoolers to use manipulatives to add integers, creating concepts rather than memorizing rules. This instructional activity will be related to the 300 Spartans who battled the...

This tutorial focuses on basic subtraction, subtraction facts, subtraction skills, subtraction of fractions and subtraction of positive and negative integers. Features include practice exercises and games.

In this interactive, use logic to solve riddles involving a wallaby jumping contest. Add two consecutive jumps and place them on a number line, finding equivalent fractions and common denominators to do so. Backward jumps represent...