This was created as an example of a powerPoint-like presentation done in GeoGebra. In addition, it represents a task that was quite messy and ugly when I used to try it in class on a chalkboard.
The chalk compass would not hold its radius, the straightedge would slip on the chalkboard, and the dilemma would always crop up as to whether I should erase some steps as I proceed (making it hard to backtrack) or let it all stay (making for a plate of chalky spaghetti).
Needless to say, I wish I had GeoGebra in my teaching days. Geogebra and a Smartboard and I would still be at it!
My complete file can be found here.
