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Looking for interactive programming with simple graphics like old CoCo BASIC or turbo pascal



I'm trying to show my son how to use his computer to help him solve
his high school math. He's in his second year at an
engineering/technology prep high school here in the Kansai area of
Japan and has trouble seeing the reasons for the methods of solution
they are trying to teach him by rote.

heh.

Anyway, what I'm looking for is something that will allow him to loop
through the equations and watch the results. Numbers are easy, of
course. Perl (his only language so far) gets us that far.

He enjoyed playing with the graphical  equation solver on the old Mac.
Maybe it spoiled him.  But he would get a lot more motivated, I think,
if he could plot the numbers, watch the equation step through and plot
the numbers in 2D on a window on the screen like you could do with the
old BASIC+graphics commands or Turbo Pascal.

Logo is too abstract.

Sugar's Pippy activity looks possible, but how well does Sugar run on
Squeeze? Is Pippy useable?

Any other suggestions?

Does TLC+TK have some simple mode that can do equation-like stuff?
Python or Haskell, or whatever, with some graphics package that
doesn't take too much code just to get a graphical window up?

--
Joel Rees


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