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Tool: Geom-e-Twee
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This is the junior version of Geom-e-Tree. It enables the manipulation of geometric trees with two or three branches. Change angle between branches and change common ratio. Selectable themes draw trees with uniform color, or different colors on successive levels. Shadows on some themes show overlapping branches. App always scales the Twee to fit within the view. App has a "perfect reduction factor mode" that draws self-contacting trees (not over-lapping or stunted).

Video tutorial and extensive website available on line. See "Puzzles" page linked under "Guide." Geom-e-Tree has more features for older students and adults. Geom-e-Twee purposely has simpler themes and limits to the number of lines drawn so that it won't bog down with wilder gestures, etc.

Technology Type: iPad 
Guide: User's Guide (opens a new window)
Author: John Miller
Language: English 
Cost: Does not require payment for use

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Tool: Geom-e-Tree
Courses: Kindergarten Geometry in the plane, Symmetry
Math 1 Symmetry
Math 2 Symmetry
Math 3 Symmetry, Fractals
Math 4 Ratio and proportion, Reflections, Fractals
Math 5 Ratio and proportion, Reflections, Fractals
Math 6 Ratio and proportion, Reflections, Fractals
Math 7 Ratio and proportion, Reflections, Fractals