Another LA provided the following suggestion after assisting students during a laboratory experiment that required use of an IR spectrophotometer: "A suggestion would be to provide an example video of certain experiments such as the IR or NMR machine since a lot of the students were dealing with this machine for the first time […] It would be great to have an example video of a TA performing an IR spectra on the machine […] from the start of cleaning the machine to the end where the machine is cleaned off." Based on these suggestions, we chose from a pool of topics that included drying agent, column chromatography, micropipetting, and NMR spectroscopy. In a pilot QR video implementation 105 we asked students to provide additional topics for which they would like QR videos." This resulted in videos being created for refluxing a reaction and IR spectroscopy.