# Lesson 8 Center Day 1

Let’s work with shapes and add or subtract numbers.

## Warm-up Number Talk: Add 3 Numbers

Find the value of each expression mentally.

## Activity 1 Introduce Match Mine: Solid Shapes

We are going to learn a new way to play Match Mine, which is a center that was introduced in kindergarten. Let’s play one round together. You can all be my partner.

## Activity 2 Centers: Choice Time

Choose a center.

Picture Books

How Are They the Same?

Capture Squares