As a longtime armchair attorney who has closely read summaries of cases like this on Slashdot for well over the past decade (IANAL, BTW)...you could go the lawyer route but this basically amounts to your kid being a minor in school which means they don't have full legal rights, and the interpretation of 4A is likely up in the air here anyway. Constitutional rights don't necessarily apply at school or anywhere near school (see bongrips4jesus case), your kid is a minor anyway (another special case), and a school doing this for the sake of "preventing cheating" may not fall under the umbrella of unreasonable search.
There was a PA school district back around 2009 that issued laptops to students preloaded with spyware that let school staff watch students through the webcam, while the students were at home and not doing schoolwork. Neither the students or parents were informed of this. IIRC the FBI got involved but nobody actually got in any real trouble, I'm not even sure they were fired.
I wish things weren't this way. You could maybe use Wireshark and black hole anything the spyware tries to connect to at the router, or maybe add the addresses to the hosts file on the machine itself (not sure if ChromeOS lets you do this).
There was a PA school district back around 2009 that issued laptops to students preloaded with spyware that let school staff watch students through the webcam, while the students were at home and not doing schoolwork. Neither the students or parents were informed of this. IIRC the FBI got involved but nobody actually got in any real trouble, I'm not even sure they were fired.
I wish things weren't this way. You could maybe use Wireshark and black hole anything the spyware tries to connect to at the router, or maybe add the addresses to the hosts file on the machine itself (not sure if ChromeOS lets you do this).