So you are asking for advice on how to train a group of people not only to be able to program and operate a CNC mill and lathe in one week (part time even) without access to all of them even being able to try making a part on their own even once.....and you want them to be proficient enough to be able to teach others how to do it in a university setting that people are paying good money to attend?
Cut it from the curriculum. If it's not important enough to get proper attention then it shouldn't be there. Make a different lab relevant to their field of study understanding that they will most likely never touch a CNC machine after they graduate.
This school obviously has too much money for machines and doesn't care about wasting people's time.
Alternatively if you want them to be exposed to CNC machining, do a mandatory lecture where you give a demo on machining some parts and leave it there.
Not trying to give you a bad day, this is just my honest 2 cents.