Big Idea:
Addition undoes subtraction and vice versa. Multiplication undoes division and vice versa. Use inverse operations to solve one-step equations.

Big Idea:
Subtraction does not have to be any harder than addition – students will turn all subtraction problems into addition problems and use the rules they have already mastered!

Big Idea:
Students demonstrating proficiency with surface area and volume rotate through a variety of performance tasks, while other students get small group instruction and a retest.

Big Idea:
By what percent did the value change? Can you relate percent change to what we already know how to do? This lesson provides multiple methods of solving.