2023-11-20 09:44:31



The deflated ball controversy makes an interesting segue into negative number line understanding.  A particular digital psi football gauge reads 0 when the ball is at a proper NFL inflation of 13 psi.  Footballs inflated under 13 psi produce negative psi readings and students have to decide the range of possible inflation levels and which reading is less inflated.

Students work with negative numbers, inequalities, and graph on the number line, all in this controversial context.  Finally, students use proportional reasoning to determine if an air temperature difference could have accounted for the deflated footballs (the math & physics has been simplified down a bit, we went with many sources boiled the math down to, you can see all the math here).  Older students can dabble in writing compound inequalities and absolute value inequalities.

Screen Shot 2015-01-24 at 9.29.23 PM

Note: If you are interested in opening with a video about "Deflategate" there are plenty of articles and video news reports online.  Just do a Google search.

For Adventurer members we have an editable Word docx and solutions.

Download PDF Download Editable Files
Share this:
Comments (1)
Admin - 2024-02-11 12:44:36
Ss loved @yummymath deflated football assignment. I learned some things too! #talkingpoints #SuperBowlXLIX — Lori Barr (@LbarrBarr) January 31, 2015
    Display 1 - 1 Of total 1
    What is Juneteenth?
       You can appreciate why this is ...
    Impress your parents at dinner
    This activity is the first in our series on me...
    Storm cleanup
    This activity could be used as an introduction...
    Hurricanes again
    Updated In this updated hurricane act...
    Just ONE hot dog
    A newly released nutritional and environment...
    Do the best movies make the most money?
    Do the "Best" movies make...
    Let's learn to gerrymander
    In this activity student first try to redistrict o...
    Oreo Stuffiness
    There is yet another Oreo... This activity buil...
    Huge Key Lime pie
    More for π Day!   On a cold an...
    What is a quantum dot?
     In this activity, students work through the ...