Wow! I love add-ons. I will in particular be playing with g(Math).
One of the primary reasons that I had not wholly switched to google docs was the inability to put in math formulas.
As a principal, I will allot "G-Time" in staff meetings (ie teach add-ons) Having shared copy I took notes on ea slide during presentation.
The Rhyming Add-On will help me create "Word Wizard" pages for my students more efficiently.
I had no idea these add-ons existed. I asked questions about how to share these add-ons across documents that kids are collaborating on.