How do you get a burner account without a phone number?

Have you ever tried to make a google account? If they somehow let you create one, they ban you from your own account within some months/years.

This is definitely not a solution. You need something that won't lock you out from your school/work at the whim of some broken automated false-positive from an evil company with no way to contact support

Or any teacher should be perfectly capable of setting up a throwaway account for teaching work, just like some are recommending the student do. Every piece of friction with data fascists is a positive gain for everyone else. It's the people opting for low friction who are greasimg the rails for fascists of all stripes.