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Bringing your own bag


Students read a short story and consider the benefits of making cost-effective choices.

Big idea

A thing’s value may be measured by its importance, usefulness, or how much money it’s worth.

Essential questions

  • How do we figure out if something is cost-effective?
  • How can we make cost-effective choices?


  • Explore the concept of cost-effectiveness
  • Be able to recognize whether an item is cost effective

What students will do

  • Explore the concept of cost-effective choices.
  • Discuss the differences between using reusable bags and single-use bags.
  • Analyze the cost-effectiveness of using a reusable bag instead of single-use bags.

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Teacher guide


Student materials


Note: Please remember to consider your students’ accommodations and special needs to ensure that all students are able to participate in a meaningful way.

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