Video editing and distribution. QR videos were edited and processed using a free version of the DaVinci Resolve software from Blackmagic Design. 17 Finalized videos were posted as "unlisted" videos on YouTube. The YouTube URL links were then converted to quick-response barcode labels that students enrolled in the course were only able to access during their assigned laboratory section (see Supporting Information for URLs links). This viewership exclusivity existed solely during the study period; videos are currently open-access to any student at any time. The videos were edited to call specific attention to certain aspects of the technique or equipment (using zooms, arrows, etc.) that may have otherwise been overlooked. The QR videos can be accessed via two-dimensional quick-145 response barcodes that are located close to related glassware or chemicals (Figure ). The quickresponse barcode for "Quick Reference: Micropipette" (1) is located near a centralized equipment area, the barcode for "IR Spectroscopy" (2) is located on the IR spectrometer, the barcode for "Reflux" (3) is attached to glassware kits students obtain from the stockroom, and the barcode for "Drying Agent" ( )