3 of 3 Items .... Source: Marco

Problems, Questions, and Puzzles to spark discussion and argument in the maths classroom.

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Bonus if you link the radius to the rotating line, like this:





Cheat code: https://www.desmos.com/calculator/py3mc7r7ls


.: [PRE-CALC], [Marco], [DESMOS Art].

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Go to DESMOS, and watch it in motion. Can you figure out what's going on here?
What do you notice? What do you wonder?
Why these units?
Why is 0 in that location?
Why is positive counter-clockwise?


See it here.


.: [PRE-CALC], [Marco], [Notice, Wonder].

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What questions could we ask about this graph of a weightlifter doing his thing?




Some ideas:

Why do the dotted lines seem to be the derivative of the solid ones?

Dotted or solid: which is height and which is velocity?

I like starting out vague - what's the same, what's different between the red and blue cases.

Then can ask about the work done, the average power delivered, the maximum instantaneous power delivered, reflection on how realistic the curve might be. ~Marco



.: [PHYSICS], [Marco], [Modeling].
that's it.