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What is a good tool to create geometry figures in elementary geometry textbooks (dealing with subjects such as triangles, circles, Pythagorean theorem and Ptolemy's theorem)?
P.S. Anyone with sufficient reputation may tag this question with geometry, which is a new tag.
Dr. Geo is a GTK interactive geometry
software. It allows one to create
geometric figure plus the interactive
manipulation of such figure in respect
with their geometric constraints. It
is usable in teaching situation with
students from primary or secondary
level.
Dr. Geo integrates advanced features
as an integrated Scheme programming
language to define scripts within a
figure. The language is also used to
define functionnaly interactive
figure.
MS Visio is always a good choice. I doubt it will outperform an application designed specifically for geometry but I do thing it makes up for it in other features that will spice up your drawings.
If it were me, I would use OpenOffice.org's Draw program. It's a simple, free solution part of the OpenOffice project. It lets you draw simple shapes easily enough and then you can put text around the shapes as needed to show the different parts of formulas and such.