3 Act Math

Act 1

1. How long will it take to knock down all the dominoes?
2. Write down a guess.

Act 2

3. What information would be useful to figure this out?
4. Write down some questions you have in your head right now.


Act 3

Common Core Standards
Understand ratio concepts and use ratio reasoning to solve problems.
represent mathematical and real-world problems involving ratios and rates using scale factors, tables, graphs, and proportions


2 thoughts on “Dominoes

  1. Is there anyway you can share the process to solve this? I tried using the given information to find a solution, but my answer was not what ACT 3 had as an answer.

    1. Hey Glenn! I just tried as well, and the answers did not come out the same.

      I set up a proportion:

      1.06/12 = x/119

      x = 10.512

      My guess is that the rate increases as the dominoes pick up more steam. Not sure I have a good answer, but this seems to put us in an interesting situation! Maybe it can lead to a good conversation about how real life and math models don’t always align?

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