The first unit in the 8th grade is on Rigid Transformations and Congruence.
This weekend I worked to edit a Desmos Polygraph activity that was originally authored by Mike Waechter. You can check out my version of the activity here. Please provide feedback if you think of ways to refine it.
I also thought it might be nice when using the Polygraph activity to open the class period with a Which One Doesn’t Belong task. This way the teacher may be able to highlight important language to use during the Polygraph activity.
If you create activities/resources that work with the Illustrative Mathematics Curriculum OR just want to see what others have created, access the link in this tweet from @k8nowak.