Gerry Stahl – Resources – GeoGebra

Construct a Perpendicular Line
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Gerry Stahl
Equilateral triangle on 3 parallel lines
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Gerry Stahl
Book of the Construction Pod Game
Book
Gerry Stahl
Construction Pod Game: Part E
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Gerry Stahl
Construction Pod Game: Part D
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Gerry Stahl
Construction Pod Game: Part C
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Gerry Stahl
Construction Pod Game: Part B
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Gerry Stahl
Construction Pod Game: Part A
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Gerry Stahl
The Circumcenter of a Triangle
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Gerry Stahl
Construct the Midpoint
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Gerry Stahl
The Drag Test
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Gerry Stahl
Translate by a Vector
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Gerry Stahl
The Incenter of a Triangle
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Gerry Stahl
The Construction Crew Game
Book
Gerry Stahl
Challenge 44: The Nine-Point Circle of a Triangle
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Gerry Stahl
Challenge 43: The Euler Segment of a Triangle
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Gerry Stahl
Challenge 49: Dependencies in the World
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Gerry Stahl
Challenge 38: Build a Hierarchy of Quadrilaterals
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Gerry Stahl
Challenge 24: Side-Angle-Side (SAS)
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Gerry Stahl
Challenge 21: Construct a Congruent Angle
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Gerry Stahl
Challenge 16: Copy a Length
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Gerry Stahl
Challenge 15: An Isosceles-Right Triangle
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Gerry Stahl
Challenge 09: Construct the Midpoint
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Gerry Stahl
Challenge 07: Construct an Equilateral Triangle
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Gerry Stahl