Which number doesn't belong? This lesson requires students to think critically as they determine which number is not a factor of a particular number. Teach it on its own or as support for the lesson Factors Over the Rainbow.

Use this ocean-inspired lesson plan to practice using one-to-one correspondence with your students. This can be used as a stand-alone lesson or support lesson for the Matching Numbers lesson plan.

In this lesson, students will consider equations with fall pictures serving as the number value and decide which equations are true and which is a lie. The worksheets in this speaking and math lesson follow the Two Truths and One Lie game.