Sorry if my English is not correct. I work for an NGO in Peru. And I propose educational technology. I have worked with Intel NUC or equivalent with moodle. Recently we encouraged Arduino and Raspberry to spread in schools. So I came to you.
I tried with Raspberry 3B + (without fan) moodlebox shows an average temperature of +50 degrees Celsius but with raspberry 4B average 33 degrees Celsius. Strees of more than 7 continuous hours. 3B+with standard box and 4B with Vilros box with fan.
I agree that it is better to have moodlebox01, moodlesbox02, etc. each with different IP. If it would be useful to have that configuration scenario.
Even so without changing anything with multiple moodlebox all the same with different network cable works well since each classroom only has wireless computers.