Greenhaus Education and Other "Effects"

I have been writing a piece about dynamic geometry® software, and have had a really difficult time conveying the power of dynamic mathematics environments in the static environment of the written word. Let me clarify what I mean by dynamic geometry software - I do NOT mean software that is just for geometry.  Dynamic geometry means the ability to take all sorts of mathematics visualizations (shapes, graphs, plots, functions) and drag and manipulate them to create infinite examples. These dynamic movements follow mathematical behaviors and allows for exploration, discovery of relationships and properties and allow students to interact directly with the mathematics because the mathematics is visual and tangible. Dynamic geometry software is specifically mentioned in the Common Core Standards of Mathematical Practice because of it's ability to be a tool that promotes reasoning, questioning, making conjectures, persevering, modeling, and communicating. Naturally, I have a strong bia...