7th Grade Task: Coupon Book Sales

7th Grade Task: Coupon Book Sales

PDF icon 7th Grade Task: Coupon Book Sales

Standards & Objectives

Essential and guiding questions: 

Part A:

  • How do you decide whether two quantities form a proportional relationship?
  • How do you identify the constant of proportionality in a table of values?

PART B:

  • Why did you make x = Number of Students Selling Books and y = Number of Coupon Books Sold in the equation or graph?
  • How would switching the labels for the x and y axes change the graph?

PART C:

  • Why did some of you create an equation where you multiplied by 3?
  • Why did we get the same answer when some of you multiplied by 3 and others divided by 3? 

Activity/Task Variations

Blooms taxonomy level: 
Understanding
Differentiation suggestions: 

If students can’t get started….
Assessing:

  • Can you explain your work?
  • How do you compute the unit rate between two quantities?
  • What is the unit rate for this task?

Advancing:

  • How many coupon books would 21 students have sold?
Extension suggestions: 

If students finish early….
Assessing:

  • How can you use the equation/reasoning you used to derive you answer in part B to verify each line in the table?
  • Why did you choose to represent the data with a graph (or table)?
  • How could you use your graph or equation to answer part c.

Advancing:

  • If coupon books cost $10, how much money would 85 students earn?
  • If you needed to raise $4500, at this rate how many students would you need selling coupon books?
Originator: 
Tennessee Department of Education