• Unit Overview

  • Letter Home
  • Unit Preparation
  • Mathematics in this Unit
  • Assessment in this Unit
  • Key Assessment Opportunities Chart
• Daily Practice and Problems
• Home Practice

• Lesson 1

  • Developing the Lesson
  • Summarizing the Lesson
  • Homework and Practice
  • Answer Keys

• Lesson 2

  • Part 1: Draw the Picture
  • Part 2: Collect the Data
  • Part 3: Graph the Data
  • Part 4: Explore the Data
  • Summarizing the Lesson
  • Homework and Practice
  • Answer Keys

• Lesson 3

  • Part 1: Use Strategies to Solve Problems with Larger Numbers
  • Part 2: Use Strategies to Solve Subtraction Problems with Larger Numbers
  • Summarizing the Lesson
  • Homework and Practice
  • Answer Keys

• Lesson 4

  • Part 1: Introducing Patterns in Numbers
  • Part 2: Adding Dimes
  • Part 3: Addition and Subtraction Patterns on Rule Machines
  • Summarizing the Lesson
  • Homework and Practice
  • Answer Keys

• Lesson 5

  • Part 1: Use Addition Strategies to Solve a Multiplication Problem
  • Part 2: Make Models for Repeated Addition with Math Mice
  • Part 3: Solve Problems with Repeated Addition and Subtraction
  • Summarizing the Lesson
  • Homework and Practice
  • Answer Keys

• Lesson 6

  • Part 1: Developing Strategies for Repeated Subtraction Problems
  • Part 2: Writing Word Problems
  • Part 3: Solving Repeated Addition and Subtraction Problems
  • Summarizing the Lesson
  • Homework and Practice
  • Answer Keys

Lesson 3

Use Problem-Solving Strategies

Est. Class Sessions: 2

Daily Practice and Problems

X

Teacher Notes

X

Have students discuss different strategies for counting the cubes to determine volume. Challenge the students to come up with different ways to count. Have them explain how each method of counting is represented in the cube model.

Volume: 12 cc

Possible number sentences:

3 sections of 4: 4 + 4 + 4 = 12

4 sections of 3: 3 + 3 + 3 + 3 = 12

6 sections of 2: 2 + 2 + 2 + 2 + 2 + 2 = 12

2 sections of 6: 6 + 6 = 12

I. Cube Model 1

Build this cube model.

Volume: _____________________

Number Sentence: _____________________