Classes you're teaching this year. Any info about them that you wish to give.
Link these classes to their Google Classrooms using the by highlighting the class text, then find the icon in your text edit menu that looks like the icon below. It will allow you to provide a URL to your Google Classroom.
Grading Policy including: policy on how you'll handle late work, retesting policy/procedure, and how quarter averages are determined for your classes.
Add anything else. There are lots of options, including adding photo galleries and links to videos.