The first thing you'll want to do is download the Sindoh Slicer here. This will allow you to send .stl files and interface with the printer. Once you install that, you're going to want to open it up for this next part.
Select "Printers" at the top and then select "Find Printer by IP Address". You might wanna be on school Wi-Fi for this. The IP Address for the printer is:
010.042.103.252
Type this in to the box and hit add. Rename it to "STEM room Printer" or something similar. You can now print stl files using the Sindoh Slicer.
If you go to printers -> Web Monitoring, you can watch the printer through its internal camera and cancel a print if anything goes poorly. This is especially helpful if you are printing something that takes longer than one period, so you can make sure all is going according to plan. It is also just fun to watch it print.