Get started by creating a list of tasks you want your students to complete and put it in a Google Doc.
For example, this Skeletal System or Geometry informs your students what tasks they must complete using Flipgrid.
The topic you make for your Flipgrid will then give instructions for your students to record each task. Students can complete the tasks in any order they like, but to get credit they must name each by the task title that is listed for each entry on your Google Doc instructions (see example below).
To find more examples, search Twitter with #fliphunt.