Creating a Google Classroom
Watch this video introduction to Google Classroom. Introduction to Google Classroom
After viewing the video, log into your Google Drive and open the Google Classroom app.
Following the steps shown in the video - create your own Google Classroom and post a welcome announcement.
Once you have created your own Google Classroom, send the class code to the instructor so that he/she can join your classroom and view what you are doing. (The instructor will only remain a part of your Google Classroom for the duration of this class, then you can remove them.) The class code can be found on the Students Section of your Google Classroom.