Many of our districts participate in "number talks" - a process by which students verbally think through and explain their computational process. The classrooms I've visited during their number talks have done this as a whole class, where all students benefit from the thoughts of others, helping their peers understanding the problems in different ways. Jeromy Keehn, math teacher at Belmond-Klemme, had his kids do a quick demonstration of solving a problem after a unit test to help familiarize the kids with the tool, as well as show their learning in a different way. The brief videos show not only whether the students came up with the right answer, but also that they understand the steps to the process. After their video response, students can quickly self-assess, showing the teacher how the class at the whole feels about a given skill or assignment.
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