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"Green Globs" for the TI-83/84
Posted:
Jan 19, 2011 8:02 PM
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Several years ago I wrote a Green-Globs-ish game called DONUTS for the TI-83/84, but until now I never got around to posting it online. Today I put it on my BlackBoard site to share.
If you don't know Green Globs, it's an old computer game (maybe still available?) in which a bunch of "globs" are drawn on an x-y grid, and the student's job is to the make equations that touch as many globs as possible.
It can be used at any level from y=mx+b through precalc. It's good for review (of lines, parabolas, other functions, transformations), it's entertaining, and it tends to provoke problem-solving and interesting questions: Can I make a make a horizontal line? ... Can I make a vertical line? (No, but how about a very steep one -- how can we make that work?) ... Can I make a sideways parabola? (No, not a function) ... Can I get a parabola to hit these 6 points? )Maybe, if you flip it upside down, shift it 3 left, shift it up 2, and stretch by a factor of ...).
You don't need a BlackBoard account to access my DONUTS game. Follow these steps:
(1) Go to http://dl-btboces.org/ (2) Click on "View Course Catalog" (3) Click on "Susquehanna Valley Central School" (4) Navigate to page 2, then click on "sv.eromer.06-07" or Search for a course whose ID contains "romer", then click on "sv.eromer.06-07" (5) Click on the green "TI Programs" link (6) Click on the file "DONUTS1-7.8xp.zip"
Note: This is the first time I have tried posting programs online, so I'm not sure I know what I'm doing. Let me know if you have problems downloading.
It's written in TI-BASIC (it's not an App), so it's not as polished as an App, but I think it's well done.
Evan Romer Susquehanna Valley HS Conklin NY 13748
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