poster: desargues configuration
ten poles, ten polars,
and ten pairs-of-triangles:
ten ways to use one drawing
(from MathEdZine, of course)
to illustrate one theorem.
(desargues’ theorem at w’edia.)
performing calculations using
actual blobs of color rather than
alphabetical symbols *standing*
for colors is time-consuming
(and demanding of special tools)…
but one literally “sees” certain things
*much more readily* than with
symbol manipulation.
hey, i’m a visual learner.
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the livingston review 
July 5, 2011 at 5:45 pm
reverse tic-tac-toe…
first three-in-a-row *loses*…
on a desargues-configuration board
appears to be of, anyway,
more interest than t-t-t itself.
you can play on an alphabetic
board, too of course (just as for
21-point t^3).
to wit:
ABC
ADE
AFG
BDH
BFI
CEH
CGI
DFJ
EGJ
HIJ
.