Using Video Projects to Reinforce Learning in Math — from edutopia.org by Alessandra King
A collaborative project can help students deeply explore math concepts, explain problem-solving strategies, and demonstrate their learning.

To this end, I assign video projects to my students. In groups of two or three, they solve a set of problems on a topic and then choose one to illustrate, solve, and explain their favorite problem-solving strategy in detail, along with the reasons they chose it. The student-created videos are collected and stored on a Padlet even after I have evaluated them—kept as a reference, keepsake, and support. I have a library of student-created videos that benefit current and future students when they have some difficulties with a topic and associated problems.