Video planning. Video topics were chosen based on GTA, LA, and student feedback. LA feedback, aggregated weekly by Head GTAs, was used to determine what common topics should be considered for an alternative approach in the form of QR videos. LAs reported that specific topics repeatedly proved challenging for students, even over multiple courses in the OCL series. Additionally, some LAs specifically indicated that students would benefit from a visual aid to complete specific tasks. One LA 95 stated, "students need more clarification on how to tell when they have added enough drying agents. A great way to show this would be to have side-by-side photos of a mixture that doesn't have enough drying agent vs. one that does (could even show a video to demonstrate clumping vs. no clumping)."