The videos on this site feature students' ways of reasoning, explanations of what these might mean for students' conceptual development, and guidance on how teachers can support that reasoning. Templates and other print materials needed to implement each sequence are provided alongside the videos, along with detailed notes that can be read independently.
Introductory Video
How to use these materials
These videos are dense and require time and thought to understand and implement — they are not short clips that introduce a single activity. We recommend watching each video in its entirety before using it in the classroom, and working through the materials with a team or a teaching partner when possible.
The instructional materials described in these videos and the accompanying print materials form sequences, and as such should generally be used in the order listed.