[IAEP] GPA Notes 7/23/09

K. K. Subramaniam subbukk at gmail.com
Sat Jul 25 05:55:01 EDT 2009


On Friday 24 Jul 2009 7:08:05 am Anurag Goel wrote:
> I feel most kids struggled with this because they had not learned too much
> about geometry, particularily concepts involving degrees and radii.
> However, kids experimented with a lot of different values to better predict
> increments. Some kids realized that if they input a really large number
> they would get the same result as importing a really small number (ex: 12
> and 732). As expected, the kids did not understand why that was. 
The circular movement is not about geometry but differential calculus. Watch 
the movie clips on Talking Turtles in http://logothings.wikispaces.com, 
particular the first part of clip 2. 732 and 12 are numerical encodings of a 
concept that they have to experience first using their own body movements.

Subbu



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