This site by Suzanne Alejandre offers lesson plans, activities and resources covering topics in algebra, geometry, data analysis, number & operations, and measurement. The contents of this site are aligned with the NCTM standards and...

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