How many gumballs are there?

2023-11-20 09:44:48

How many gumballs are there?

Gumball Machine Problem from Brian Marks on Vimeo

This problem is a little puzzle to get your students thinking, estimating, and calculating. We've given you a pdf file with only a picture of the gumball machine to use for estimating.
  • How many gumballs are there?
  • At $0.25 per ball, how much will it cost me to buy them all?
  • How long will buying them all take?


For Adventurer members we have our thoughts on how a student might estimate or calculate this quantity.

Activity Solutions & Supporting Materials
Share this:
Comments (0)
    Display 1 - 10 Of total 0
    What is Juneteenth?
       You can appreciate why this is ...
    Happy 14th B'ak'tun!
    Luckily, we’ve passed 12/21/2012 and the...
    I should have invested!
      People who have invested their m...
    How hard it is to pick the perfect bracket?
    Games have begun and there have been several...
    New Mega Millions (probability)
    In this activity, students apply their u...
    Occupy Wall Street protest is growing
       The Occupy Wall Street (OWS) movem...