# Comparing Even and Odd Groups

This lesson helps students identify even and odd numbers, which sets the foundation for learning about division, prime numbers, and even square roots. Use this hands on lesson alongside Odd One Out!
This lesson can be used as a pre-lesson for the Odd One Out lesson plan.
##### View aligned standards
This lesson can be used as a pre-lesson for the Odd One Out lesson plan.

#### Objectives

Students will be able to determine whether a group of objects has an even or odd number of items.

##### Language

Students will discuss whether a group of objects (up to 20) has an even or odd number of items with grade-level academic vocabulary using discussions and manipulatives for support.

#### Introduction

(5 minutes)
• Gather students to sit on the floor in front of the whiteboard. Project the What Do You Notice? worksheet and say, "There are four groups of circles. What do you notice about these groups? I want you to turn and talk to a partner, using the sentence frame on the board for support." Write the following sentence frame on the board and model completing it with something you notice about the groups of circles:
• I notice ________.
• Allow a few students to share their answers with the rest of the class. Next ask students, "What do you notice about the red group compared to the blue groups?" Have students turn and talk to a partner, sharing their ideas. Allow a few students to share their answers with the class.
• Continue asking prompting questions: "Are any of these groups the same? Which groups? Why? Are any of the groups different? Why?" Allow students to share a few of their ideas with the class and provide positive reinforcement on their deep thinking skills.