# Lesson 13

Center Day 2 (optional)

### Lesson Purpose

The purpose of this lesson is for students to order, compare, and describe three-digit numbers using their understanding of place value.

### Lesson Narrative

This lesson is optional because it is an opportunity for extra practice that not all classes may need. In Activity 1, students learn a new stage of the Get Your Numbers in Order center, which was first introduced in grade 1. In this stage, students use their understanding of relative magnitude to order three-digit numbers. In Activity 2, students choose 2 activities to work on that provide practice with place value, addition, and subtraction.

### Learning Goals

Teacher Facing

• Order, compare, and describe three-digit numbers using place value understanding.

### Student Facing

• Let’s work on place value.

### Required Materials

Materials to Gather

Materials to Copy

• Get Your Numbers in Order Stage 2 Gameboard

### Required Preparation

Activity 2:

Gather materials from previous centers:

• Get Your Numbers In Order, Stage 2
• Greatest Of Them All, Stage 2
• Mystery Number, Stage 2

Building Towards

### Lesson Timeline

 Warm-up 10 min Activity 1 15 min Activity 2 20 min Lesson Synthesis 10 min

### Teacher Reflection Questions

What opportunities are you giving students to reflect on their understanding of the mathematical content?

### Print Formatted Materials

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