# Lesson 15

Expressions and Drawings

### Lesson Purpose

The purpose of this lesson is for students to connect expressions to drawings.

### Lesson Narrative

In previous lessons, students created drawings to represent story problems and connected drawings and expressions to story problems. In this lesson, students match expressions to drawings and create drawings and expressions. This lesson is moving students toward a more abstract understanding of expressions (MP2). In previous lessons, students had the context of a story problem and a clear action to help them relate to the expressions. In this lesson, students use their understanding of the plus and minus signs to determine whether to add or subtract.
• Action and Expression
• MLR8

### Learning Goals

Teacher Facing

• Interpret expressions in relation to drawings.

### Student Facing

• Let’s match expressions to drawings.

### Required Materials

Materials to Gather

Materials to Copy

• Shake and Spill Stage 3 Recording Sheet Kindergarten

### Required Preparation

Activity 3:

• Each group of 2 needs 10 two-color counters.
• Each group of 2 needs access to a yellow crayon and a red crayon.
• Gather materials from:
• Number Race, Stage 1
• Math Stories, Stages 1 and 2

### Lesson Timeline

 Warm-up 10 min Activity 1 10 min Activity 2 10 min Activity 3 25 min Lesson Synthesis 5 min Cool-down 0 min

### Teacher Reflection Questions

Revisit the norms you established as a class about doing mathematics. Which norms are working and which might need revision? Are there any norms you or your students might want to add?