So it's 4:30pm on a Friday and I've decided that grading papers is still my priority to lighten my load for next week. You would think that would be a gritty, unsatisfying decision, but among the stack there came one paper which caught me completely by surprise, and made my extra time entirely worthwhile.
For obvious reasons I can't disclose anything about the student, but I can describe the assignment. It was a graphing practice. It provided several sets of data with the task of determining the function that best described it based on a handful of functions I set out earlier in class. One of the six data sets was a little sneaky: it didn't completely conform to any of the functions I had described. I planned to give full credit for a "quadratic" solution, as that was the closest match that I had provided. But this student came up with the actual solution: that it was y=kx^(1.5). And then he wrote a paragraph about this problem as follows (I don't think it's illegal to share this - besides I was delighted to have read it):
"The graph of data set ____ looks like a parabola or a straight line. I also though that I might have made a mistake drawing it and that it was a square-root. None of these worked, so I asked my father for help. We determined that it followed the equation y=kx^(1.5). Although I worked hard on this problem, the solution is not mine."
Here's what I wrote on his paper:
"Indeed it is also Kepler's solution to the relationship between the orbital radius and period of the planets, more commonly seen as radius^3=period^2, which gives period=radius^(3/2). Your honesty and humility are truly remarkable. Thank you :) "
I will probably be glowing about this kid all weekend.
Friday, September 4, 2009
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1 comment:
Oh man. That made my day!
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