What is in the cup? (fractions and ratios)

mystery fraction cup

What is in the cup?  This is an engaging, interactive, classroom community and exploration activity that will lead to powerful discussion.  Watch the video below and try this activity in your classroom.



Another post you might be interested in is this powerful vocabulary activity:  Talk a Mile a Minute.

You may also be interested in:

If you are interested in reflective posts about teaching and learning, here are some other posts that may interest you:


If you would like to learn more about Steve, his animated math books, or his work with Scholastic, click here.


mystery fraction cup




  1. Vicki on April 3, 2022 at 1:53 pm

    Hey Steve,
    What’s in the cup sounds like such a great activity. I think I want to try this out this week. Any tips before I try it out with my class?

    • Steve Wyborney on April 4, 2022 at 6:38 am

      Hi, Vicki. I would make sure the students tally the colors that come out of the cup as you go. Enjoy!

Leave a Comment