The Parking Meter Solution

parking meter solution pic

One week after posting The Parking Meter Question, here is the solution.

If you have not yet watched the original video you will want to begin here.

Also, the PDF can be downloaded here.  If you use it in class, please send me a photo!



For further instructional ideas and activities, take a look at Math in Motion, or The Number Concept Map.


To see how educators from around the world completed the synectic analogy questions, “How is math like peanut butter?” and “How are prime numbers like glue?” take a look at the witty and remarkable answers here.  You will see a surprisingly powerful strategy, especially if you give it a few moments to develop.




parking meter solution pic


  1. Josh Rosen on January 16, 2018 at 7:14 am

    Hi Steve-

    I really enjoy your work. I am a Math Specialist in New York and my teachers really enjoy splat, imposter sets and many other things. I really enjoyed the problem about parking. Your models elucidated the concept very well.
    One other idea (that I’m sure you considered) is that much of the time when you would not need to pay to park would be in the middle of the night, when you would be unlikely to be parking in a municipal lot anyway. I wonder if students might bring this up.

    Such a thought provoking problem!!

    Thanks Josh Rosen

    • on January 16, 2018 at 9:03 pm

      Thanks, Josh. I appreciate hearing about the enthusiasm. That’s a great point about how the parking space is less likely to be used during the night. That’s the kind of context that certainly should be brought up. Thanks for the feedback. I’ll keep writing more!

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