In math, mistakes are welcome! This lesson helps your students identify and fix errors made while comparing three- to four-digit numbers. Teach the lesson on its own or as support to the lesson Let's Compare Whole Numbers!

Teach your students to draw an array using base ten notation to solve multiplication problems with two two-digit factors.

Facilitate an exploration and comparison of multiplication strategies for your students to see the variety of ways to solve the same problem. Use this lesson on its own or teach it prior to the lesson Multiplication: Musical Chairs.

Get your students thinking like mathematicians with this lesson that has them crafting questions for multi-step word problems. It may be taught independently or as support for the lesson Multi-Step Word Problems? No Problem!