How much does it cost to replace a mac air screen?

PS:

There was a problem in my reply, and then an edit failed to take.

As you need to inquire of school district administration about their damages and liability policy,

as they own the unit. If you have documents on the storage drive and need them, that may be

a priority to you; hopefully you have a backup.

Given the ownership and future of their product is in the hands of another party, you essentially you

are a third-party; the school district likely would choose to handle repair/replacement on their own.

You may still get an estimate, on the repair (or replace?) depending on age and if like-for-like

is possible. As stated, we're not able to reply for Apple; but you could get Genius appointment

for inspection and estimate; &/or repairs, with authorized Apple service. ~ Check options here:

• Genius Bar Reservation and Apple Support Options - Apple

https://www.apple.com/retail/geniusbar/

We are all other users here and do not work for Apple, so we would not know what the cost may be, especially in your situation where it is school property. You will need to wait until tomorrow to find out, sorry.