I'm a university professor, and there's no way i can afford personally 1$/month per student. And definitely the school won't allow me the budget. "Use the lab computers", they'll say.. So I don't know how realistically someone can use repl.it for teaching, at least in public/higher education.

Repl.it allows each teacher account to have up to 200 students for free! Is this enough to cover all your students? If not, reach out to me at [email protected] and we can work something out.