The question that I often hear from mathematics teachers about Google Documents is, “are there any features for me?” The answer is, “yes, but they don’t always jump out at you.” Google Docs does have a built-in equation editor that you can access from the insert drop-down menu. To create graphs in Google Docs you’ll want to grab either the g(Math) or the Wizkids CAS Add-ons for Google Docs.
g(Math) for Google Docs offers other features in addition to a graphing. Besides creating graphs you can insert handwriting entries and statistical displays. g(Math) also supports voice input. Extensive tutorials for g(Math) can be found on the g(Math) Help website.
Wizkids CAS is another Google Docs Add-on that offers a graphing calculator feature. Wizkids CAS offers tools for solve=ing equations and plotting graphs, finding numerical and exact solutions, and simplifying and factoring expressions with variables. The video embedded below provides an overview of the features in Wizkids CAS.