Hi, Aubrie.  We are in the middle of re-organizing and re-working videos inside BMM to create a more user-friendly site.  The ideas we planned to put in the Equal Sign progression will be embedded into new videos.  In the meantime, if you have questions about helping students understand the Equal Sign, you can post a question.

Where can I find where they are embedded? I am looking for progression/trajectory resources on developing understanding of the equal sign to support the teachers I am coaching.