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• Lesson 1.9: Draw a Picture
• Lesson 2.8: Write a Number Sentence
• Lesson 3.8: Act It Out With Models
• Lesson 4.6: Use a Graph
• Lesson 5.5: Write a Number Sentence
• Lesson 6.7: Choose the Operation
• Lesson 7.7: Draw a Picture
• Lesson 8.9: Find a Pattern
• Lesson 9.6: Use a Picture
• Lesson 10.9: Act It Out With Models
• Lesson 11.6: Reasonable Answers
• Lesson 12.5: Find a Pattern
• Lesson 13.9: Use a Table
• Lesson 14.7: Use a Picture
• Lesson 15.8: Make a Table
• Lesson 16.8: Choose the Operation
• Lesson 17.8: Use Logical Reasoning
• Lesson 18.5: Reasonable Answers
• Lesson 19.7: Write a Number Sentence
• Lesson 20.7: Too Much Information
• Lesson 21.6: Guess and Check
• Lesson 22.7: Choose the Operation