I’m teaching geometry this year and want to have a deeper understanding of how some things are constructed. This has led to a borderline unhealthy binge on Geometer’s Sketchpad. Thus, here are a lot of gifs. I hope someone can make use of them. If you are looking for one and can’t find it, request it in the comments. No promises, but I’ll do my best to make them if it’s in my skill set. OR if you have suggestions on how I could do any of these more effectively, let me know. I’ll update this as I make more gifs.
Constructing a circle through 3 points:
Constructing an equilateral triangle
Constructing a regular hexagon
Creating a triangle from 3 segments
Proportional Lines
arbitrarilyclose 
You can never have too much Geometer’s Sketchpad, in my experience!
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