David Chandler – Resources – GeoGebra

Symmetric description of scaling and translation
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David Chandler
Sum of the Angles of a Triangle (using dilation)
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David Chandler
Sum of the exterior angles of a polygon
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David Chandler
Making Do with GeoGebra's Tools
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David Chandler
An Applet Involving Multi-stage Animation
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David Chandler
Rainbow Physics and Mathematics
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David Chandler
Analysis of a Rainbow
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David Chandler
Another Applet Involving Multi-Stage Animation
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David Chandler
Two Levels of Radio Buttons with Variants
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David Chandler
Radio Buttons and Clear Button
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David Chandler
My Talk
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David Chandler
Volume of a Sphere
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David Chandler
Geometric Optics, Part 2 -- Thin Convex Lenses
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David Chandler
Geometric Optics, Part 1 -- Optical Images
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David Chandler
Tiling the Plane with Pentagons (?), Part 2
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David Chandler
Tiling the Plane with Pentagons (?), Part 1
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David Chandler
Tiling the Plane with Quadrilaterals
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David Chandler
Tiling the Plane with Triangles (Method 2)
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David Chandler
Tiling the Plane with Triangles (Method 1)
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David Chandler
Analysis of rainbows (Part II)
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David Chandler
Analysis of rainbows (Part I)
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David Chandler
Hyperbola constructed by paper folding
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David Chandler
Ellipse constructed by paper folding
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David Chandler
Parabola constructed by paper folding
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David Chandler