From the resource:

"Learn how to use Flipgrid in this Flipgrid Tutorial for Teachers. Flipgrid is a free program that will allow you and your students to post short videos online in response to different prompts, and to converse with each other via video.

In this series, Sam Kary, a veteran teacher and education technology enthusiast, showcases free technology programs to support teachers with creative engaging online lessons for students during school closures."