# Lesson 2

Thousandths on Grids and in Words

### Lesson Purpose

The purpose of this lesson is for students to read and write decimals to the thousandths place and represent the decimals with diagrams.

### Lesson Narrative

The purpose of this lesson is for students to represent decimals to the thousandths in different ways. First, students use hundredths grids to represent fractions and decimals and also write decimals representing a shaded region. Then students analyze language to describe a decimal represented on a hundredths grid, focusing on the value of each digit in a decimal and how it is represented in the corresponding diagram. These different ways of viewing a decimal lead naturally to the expanded form and word form of decimals which students will study in greater detail in future lessons.

• Engagement
• MLR2

### Learning Goals

Teacher Facing

• Represent fractions and decimals to thousandths on hundredths grids.
• Write fractions and decimals to thousandths to represent shaded amounts on hundredths grids.

### Student Facing

• Let’s represent numbers as decimals, fractions, words, and on hundredths grids.

### Lesson Timeline

 Warm-up 10 min Activity 1 20 min Activity 2 15 min Lesson Synthesis 10 min Cool-down 5 min

### Teacher Reflection Questions

Think about a recent time from class when your students were confused. What did you do to support them in reasoning about their confusion together as a community of learners?

### Suggested Centers

• Mystery Number (1–4), Stage 5: Six-digit Numbers (Supporting)
• Get Your Numbers in Order (1–5), Stage 4: Denominators 2, 3, 4, 5, 6, 8, 10, 12, or 100 (Supporting)