Last week on Free Technology for Teachers I ran a series of blog posts highlighting my favorite add-ons for Google Forms, Sheets, Slides, and Docs. I followed that up with a post about some of my favorite Chrome extensions. All of those recommendations plus a couple of videos about installing add-ons and extensions are included below. Installing Add-ons You can find each of the following add-ons by opening the “Add-ons” drop-down menu while viewing a Document, Slide, Sheet, or Form.…