The high school in was in during my last year of math(niagara-wheatfield i think i was in that year) made a huge deal that every student needs to have their own scientific calculator for the school year. Parents flipped out but the schools said they would fail the course without one so most caved.
First day of class the math teacher sees everyone pull out their brand new scientific calculators and says calculators WILL NOT be allowed in class. Middle of the school year the teacher pulls a big bin out of scientific calculators the school bought for us to use that one day in class. Parents were pissed. Never got to use the calculators the school demanded we buy.
That school was a mess. I moved there from Amherst my jr year and they were almost a two years behind. They were teaching me stuff i learned my sophmore year in Amherst my sr year at NW.