Guide to using Google Classroom:
Create classes (Looking into doing this for teachers)
Add People
Post Announcement to the Stream
Create Classwork
Grading and Feedback
Settings for Google Classroom
Use Screencastify to record lessons. Everything I've read, and I do believe this, says it is important for your students to see your faces and know you are there for them. If you have Google Classroom setup, you can easily post your videos to Google Classroom. You can also post them on YouTube and send out your YouTube Channel to your students.
Screencastify is currently offering the PREMIUM version for free until April 30, 2020. Everyone should have the extension installed and can access the extension from the extension bar at the top of your screen. It looks like the icon in the heading below. LOGIN with YOUR GOOGLE ACCOUNT. Then, select upgrade. Use the redeem coupon code: CAST_COVID (all uppercase.)