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
    10 Million nematodes
    Nematodes Grubs are killing my grass.  I...
    Microns and Masks
      How big is one coronavirus? How big is a m...
    Man paid in 500 pounds of greasy pennies!
        A man from Georgia, Andreas ...
    String design, ellipses, and orbital mechanics
    Here's a different and somewha...
    What can you tell about a snowflake?
      As a snowflake falls from the sky, its...
    The Power of Leverage
     ðŸ“ˆ In this activity, students will explore th...
    Groundhog Day
    On Groundhog Day (February 2nd), Punxsutawney Phil...
    The tallest structure made of Legos
    Act One: The world record for the tal...
    Bowl by the hour or the game?
       What should you consider when choo...
    Crazy basketball score
    Wow! Look at that score! There were some sc...