Have students use an app to record their solving processes and check their work. Some apps we use include Pix Clip, Show Me, and ScreenChomp. Some are free and some require a small fee.
Then, have the student share their recording with a partner. The partner can provide focused feedback, that the student can use revise their solving strategy and the video to improve understanding.
To help students understand the expectations of creating a math video, use a rubric. I really liked Pamela Buffington’s idea I learned about at NCSM. Buffington is from the Educational Development Center in Gardiner, Maine: