How did they figure these tips?

2023-11-20 09:44:33

How did they figure these tips?


receipt-smudged 


Act I:  This restaurant bill has the suggested tips, but they are smudged out.  What should they be?  Consider having students make a fast 5 to 10 -second prediction in their heads. 

Act II:  Students work - for few minutes on own, then with partners. Have groups or partners share how you figured these out.  No need to have every group share, focus on, and compare and contrast, or connect a few different student strategies. 

Act III:  Reveal the un-smudged receipt.  How did they figure the tip ... before or after the tax?  Why does it matter?   What percent greater are tips that are after tax compared to tips that are before tax? Sequel: If kids finish early, ask them to find other tip amounts for this bill, such as 10%, 25% or other.  Or if a customer didn't want to think and just left a ten dollar bill, what percent is that?


Activity Solutions & Supporting Materials
Share this:
Comments (0)
    Display 1 - 10 Of total 0
    New Mega Millions (probability)
    In this activity, students apply their u...
    BP and the stock market updated
    Free Stock photos by Vecteezy The...
    The new largest Lego set ever - The Roman Colosseum
    Note: This is a remake of our 2014 and 201...
    What a range
    📗Tem...
    Voyager on the edge
    The two Voyager space probes are in the news rec...
    Do teams that spend a lot win a lot?
    In this activity students compare team wins with...
    John Urschel, retired Baltimore Raven and Black mathematician
    John Urschel is a young man with several seeming...
    Triple Crown hopefuls at the Preakness
    Credit: AP Photo/Garry Jones ...
    What's with the plovers?
    Cute little birds.  Piping plovers are ...
    So just print some more money!
                         Wh...