Unit 1, Lesson 10 -- Solving Comparison Problems

Lesson 10-- Solving Comparison Problems

Introduction

Hi Mathematicians!  Today, we will think about solving story problems involving comparison of two quantities.

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Video

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Assignment

Part 1 Directions:

• Click the link for the interactive drawing activity below, and make a copy.
• Read the story problem.  Drag and drop the bars to create a model of the story.
• In your journal, draw the model.  Then, write an equation and solve.

Bar Models for Comparison Interactive Drawing Links to an external site.

Part 2 Directions:

• Read the story problem below.
• On the Next page, answer the following question in the Discussion:
  • How can a bar model help you solve this story problem?
  • Explain how to find the answer.

Cameron watched a video that was 28 minutes long.  Lena watched a video that was 14 minutes shorter than Cameron's.  How many minutes long was Lena's video?

 

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