# Lesson 6

Center Day 1

### Lesson Purpose

The purpose of this lesson is for students to practice adding and subtracting within 10.

### Lesson Narrative

Students begin with an activity focused on finding pairs of numbers that make 10. After spending time on this activity, students then choose from other center activities introduced in previous lessons.
• Action and Expression
• MLR8

### Learning Goals

Teacher Facing

• Add and subtract within 10 in a way that makes sense to them.

### Student Facing

• Let’s play games to practice adding and subtracting.

### Required Materials

Materials to Gather

Materials to Copy

• Find the Pair Stage 2 Recording Sheet

### Required Preparation

Activity 1:

• Each group of 2 needs a set of Number Cards 0-10.

Activity 2:

• Gather materials from previous centers:
• Counting Collections, Stage 1
• Number Race, Stage 3
• Check it Off, Stages 1 and 2
• Five in a Row: Addition and Subtraction, Stages 1 and 2
• Find the Pair, Stage 2

Building On

### Lesson Timeline

 Warm-up 10 min Activity 1 20 min Activity 2 20 min Lesson Synthesis 10 min

### Teacher Reflection Questions

Students worked in centers a lot in this section. What structures have you put in place to make center time successful for all students? What additional structures or procedures could be helpful to introduce?