i havent gotten a chance to check tv tome on my question so here it is
If each season is supposed to represent one school year than how come in the second season (sophmore year) the Kids all went to the prom i thought that you had to be a junior or senior to go to the prom and also at the end of season 4 they have the 2 part christmas episode and then only one more episode what happened to the rest of the year and how come they didn't have a graduation episode?

I believe thegraduation episode is in Season 5, and you don't have to be a junior or senior to go to prom if you're a guest of one. If it isnt that, then it is because this is a fictional setting in a fictional school. It can do what it wants :D

yeah i looked it up on tv tome and they say there is four seasons but lions gate splits the episodes up into 5 seasons anyways thanks