I do not remember if we could check our own problems or not. All I remember was that if you didn't pass the test on the packet that you had to go back and work on it some more and try again until you did pass.
And I will reiterate that from 8th grade through 12th grade not one person EVER checked my math homework. The upside of it was that I DID do it when I thought I had to; the downside was that it took a few shaky episodes for me to learn when I did and didn't have to do it. (Example: I am right now very bad at graphing polar equations in my head because I did no homework on polar equations when I was in 10th grade; I am as calculator-dependent as my students when it comes to graphing in polar.) I was super-insulted when I was a freshman in college and we had to TURN IN our homework EVERY CLASS. I ranted, "This is so childish. No one has checked my math homework since I was in SEVENTH GRADE."
-- RudbeckiaHirta - 03 Nov 2005