Shop Smart

This Shop Smart lesson plan also includes:

What is a better deal?

  • Buy one, get one half off
  • Buy three for the cost of two
  • Buy one at 40% off the original price
Mathematicians use algebraic expressions to sort through the scenarios and figure out who benefits most: business owner or customer. Consider attaching prices to a box or two as a visual display, and have the class compute the sales for each item priced.

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CCSS: Designed
Additional Tags


  • The practical application of algebraic concepts can save learners money in the future
  • Two different strategies are offered in the solution section of the teacher's guide
  • Simple, focused task addresses Common Core State Standards for seventh grade math
  • With the included worksheet, you could possibly use this task as an assessment

  • None
Common Core