This video walks through each step:
Go to the Flipgrid website and click "Educator Login"
Log in with your Henrico Google account, and hit "Add New Grid." A grid is like a folder of topics ("My Class 2020," and each topic is like a wall of videos ("Our Book Reviews")
Choose "School Email" as the method your students will use to log in, and hit "Next"
Type the email ending "@henricostudents.org"
Hit "Next" and "Add New Topic"
Send the link to that topic to your students.