Hi Mandy, Working with diverse groups is probably the #1 challenge identified by the teachers we’ve worked with as well. In Session 1.4 and again in Unit 2, we highlight the importance of identifying the key elements that can be (meaningfully) varied within a particular topic. This can open up spaces that are helpful both for supporting those who struggle and for extending in ways that challenge those who are ready. That way, everybody can work on the same idea even if some do so with more complex examples. As an added bonus, when there is a clear connection between the easier and harder variations, those who start with the easy ones are more likely to transition to the harder ones.