# Lesson 8

More Questions about Scaled Bar Graphs

### Lesson Purpose

The purpose of this lesson is for students to solve one- and two-step “how many more” and “how many fewer” problems, based on data presented in a scaled bar graph.

### Lesson Narrative

This lesson introduces Three Reads (MLR 6) to support students in making sense of and solving situations. In this lesson students continue to interpret graphs that represent quantities that are not exact multiples of the scale and require students to estimate values. As a result, answers may vary slightly. Accept all answers that align to reasonable estimates.

• Engagement
• MLR8

### Learning Goals

Teacher Facing

• Solve one- and two-step “how many more” and “how many fewer” problems within 100, based on the data presented in scaled bar graphs.

### Student Facing

• Let’s solve problems using data shown on bar graphs.

Addressing

### 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

Who got to do math today in class and how do you know? Identify the norms or routines that allowed those students to engage in mathematics. How can you adjust these norms and routines so all students do math tomorrow?

### Suggested Centers

• Sort and Display (1–3), Stage 3: Scaled Graphs (Addressing)
• Five in a Row: Addition and Subtraction (1–2), Stage 6: Add within 100 with Composing (Supporting)

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