How much should you spend on this sale?

2023-11-20 09:44:31

How much should you spend on this sale?

This activity can be used in a large range of grade levels.  Your class can work on percents, linear equations or piecewise functions.

Act One: We missed the semi-annual sale but we want to get ready for the next one.  Let's figure out how much we could save.

Gap Sale PicCoupon from the gap.com Shop the Gap

What questions do you have?

Act Two:  What amounts make sense to spend up to get the best deal?  What purchase amounts do not make sense to make?  Try shopping the gap with your students and apply the  appropriate discount yourself. Find your cost for the items in this pdf.        Discounts2014.pdf

Note to teachers: In this sale, if you spend $75 you get 30% off, but if you spend $25 more, getting up to $100 you save 30%.  If you spend $124 you also get 30% off.  Anything $125 or more is 40% off.

Create a graph with the value of your purchase on the x -axis (before this discount) and what you actually pay on the y-axis (after discount).  How does this graph help you see which price points are the best deal? Act Three: Word doc, solutions and graphs.  A great way to sum up the lesson is to ask kids... "if you are going to buy $74 worth of clothes then you might as well buy $______ worth of clothes."

For members we have editable word docs, Excel Files & Solutions:

 Discounts2014.docx    Gap-data.xlsx

 discounts-solutions2014.pdf          Solution-graphed.png

 CCSS:6.RP.3, 7.RP.3, 8.F.4, 8.F.5, HSF.LE.B.5HSA.CED.A.3

Check out all current Yummymath lessons in one place at our Bird's Eye View page.

Activity Solutions & Supporting Materials
Share this:
Comments (0)
    Display 1 - 10 Of total 0
    Earth Day Actions for Our Planet (April 22)
    We have 16 activities that you...
    Shooting for Three
    The NBA court has a 3-point line ...
    Can this possibly be True?
     This activity is being updated =). &nbs...
    Oil Spill Tragedy
    As of May 28th, 2010  it is believed that t...
    College Costs Keep Going Up
     College costs keep rising, and it can be har...
    Point of view
    If you have a set of cubes for your classr...
    David Price, big bucks per ...
      David Price, a 30-year old pitcher from To...
    Just some March Madness math
    Today, March 12th, is selection Sunday. Tomorrow...
    Want to earn $150,000? - Mersenne prime search
    What's a Mersenne prime?  How hard coul...
    Red Green Bitcoin
      📉 In this activity, students will expl...