I have recently been thinking about the implications of repeating academic course content again in future courses. I have been thinking about this in two contexts:
1. A curriculum purposefully designed to cycle back through topics or skills students have seen in previous courses.
2. When a college student ends up in an intro class when they have already (to some extent) taken that course already through AP classes or through Coursera or something similar.

Here are my thoughts: Effects of Repeating Content in Future Courses