SCOTUS ruled in Griswold that emanations from penumbras of the third amendment meant that agents of the state cannot monitor peoples' behavior inside their own homes.
The schools cannot force parents to not watch their children's computer and internet activity, even if that is a schooling exercise.
-PJ
Our pubic schools have gone 1984 since 1984; this issue is in their genes now...
Schools Are Pushing the Boundaries of Surveillance Technologies
https://www.eff.org/deeplinks/2020/02/schools-are-pushing-boundaries-surveillance-technologies
Is School Surveillance Going Too Far? Privacy Leaders Urge a Slow Down