# Lesson 10

Estimation Exploration

### Lesson Purpose

The purpose of this lesson is for students to analyze different kinds of estimation problems and ways to make estimates, and then write their own estimation problems.

### Lesson Narrative

Earlier in the course, students developed their ability to reason multiplicatively and to find products of multi-digit numbers. Throughout the course, students have also been prompted to make estimates. In this lesson, they apply these understandings and skills to create their own Estimation Exploration activity.

The Estimation Exploration routine encourages students to anticipate multiple ways others might make an estimate based on a given image or description, and to revise their thinking accordingly. Later in the lesson, students will facilitate their activity in small groups. The lesson may take more than one class period if students take turns facilitating their estimation problem.

• Engagement
• MLR8

### Learning Goals

Teacher Facing

• Analyze and write estimation problems.

### Student Facing

• Let’s design an Estimation Exploration activity.

### Required Preparation

Activity 2:

• Gather two magazines or other sources of images for each group of 3–4 students.

### Lesson Timeline

 Warm-up 10 min Activity 1 10 min Activity 2 15 min Activity 3 10 min Lesson Synthesis 10 min Cool-down 5 min

### Teacher Reflection Questions

Today’s lesson invited students to contribute in different ways and settings. Reflect on who participated in math class today. What assumptions are you making about those who did not participate? How can you leverage each of your student’s ideas to support them in being seen and heard in tomorrow’s math class?

### Print Formatted Materials

 Student Task Statements pdf docx Lesson Cover Page pdf docx Cool Down Log In Teacher Guide Log In Teacher Presentation Materials pdf docx