Great idea for a class.
Other things to cover:
How to check and top off oil.
How to check and adjust air pressure in tires.
How to check and top off windshield washer fluid.
How to check and top off coolant overflow tank.
How to inspect hoses and belts.
How to replace a fuse.
How to replace a tail lamp, turn signal lamp or back up lamp. This may be very easy with some vehicles.
How to replace a headlamp or front turn signal lamp. This may be ridiculously difficult with some vehicles.
How to change a flat tire.
What does it mean when the turn signal flashes abnormally quickly or slowly?
How to replace a wiper refill. Removing the blade from the arm can be tricky until you have done it once.
Do you need premium fuel?
When does something not look, sound or smell right?
Maybe how to defog a headlamp lens. I really need to do this.
Hint: Replacement tail lamp, turn signal and back up lamp bulbs used to be all clear. Now they come in clear, red and amber. Use a clear one unless the lens is clear, then use a red or amber one as appropriate. If you have a broken tinted lens, replace the clear bulb with one of the appropriate color. Even if that is not sufficient legally, it may help to not be noticed until the lens is replaced.
Bonus hint: Use a reflection in a glass storefront to inspect the lamps at the rear of the vehicle without needing another person