Which all goes to show that the K-12 educational system(s) should be chucked in their entirety and then be reconstructed on the model from the 1950s and early 1960s (ie, before "new math", "ebonics", and their ilk).
Maybe even reinstitute respect for teachers without their having to pander to special interests (including parents, helicopter or otherwise).
That would be a truly elegant "retro" plan with solid results.
(And let's leave '50s battlegrounds such as Brooklyn schools out of the equation. They were great for teachers, who got hazard [read: war] pay, but did nothing for the inmates. The "blackboard jungle" was indeed a reality, not just a groovy motion picture.}