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