Mr. Kletke introduced Google Classroom along with Google Docs to his 6th graders in the spring of 2015. Since then Calvary teachers have continued to expand its use throughout the middle grades, however, parents have not always fully understood just what Google Classroom and Google Docs were all about. Here are some resources for parents.
A Brief Description
"Google Classroom is one of Google for Education's newest products and it has received rave reviews from many educators. It is a learning management system that allows you to digitally create and manage assignments as well as to provide feedback to your students. Google Classroom works particularly with Google Apps for Education , a suite of productivity tools (Drive, Docs, Gmail, etc) that you may already use in your school."
Google Classroom Explained - About Education Nov. 2016
Here are a couple of videos which might be of help
Google Classroom Parent Tutorial
Google Classroom for Parents