Well done. Yes, that's a good version of what I had in mind. On Tue, Feb 23, 2010 at 10:07, Bert Freudenberg <[email protected]>wrote:
> On 22.02.2010, at 17:24, Edward Cherlin wrote: > > > > > >>> Implemented in Turtle Art, not so hard. > >>> http://tonyforster.blogspot.com/2010/02/turtle-pythagoras.html > >> > >> That layout doesn't really convey the idea of the proof to me. This > does: > >> (from http://en.wikipedia.org/wiki/Mathematical_beauty) > > > In my diagrams, you move exactly two triangles from inside the first > > square to get the second arrangement. The red line marks off the two > > squares on the sides. Adding labels, or highlighting certain sides > > further, should make the construction as obvious as you like. > > I think with a fixed diagram the one shown at the Wikipedia article above > is more obvious - unless you already *know* how to interpret your diagram. > > The idea itself works very nicely if actually doing it with tiles. It > introduces an additional helper square which I found distracting in the > picture you showed, but works fine when done interactively. > > I tried that idea in Etoys - very easy to do, no scripting involved (unless > you want animation). And that lead me even to a static picture I find easy > to understand: > > > > > You can see how I created it here, takes just five minutes to do: > http://www.youtube.com/watch?v=YIGCdOtfd7E > > - Bert - > > > _______________________________________________ > IAEP -- It's An Education Project (not a laptop project!) > [email protected] > http://lists.sugarlabs.org/listinfo/iaep > -- Edward Mokurai (默雷/धर्ममेघशब्दगर्ज/دھرممیگھشبدگر ج) Cherlin Silent Thunder is my name, and Children are my nation. The Cosmos is my dwelling place, the Truth my destination. http://www.earthtreasury.org/
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