I am always wondering what my child *should* be learning at a particular grade. Honestly, I just want to make sure my bases stay covered because due to the fact that I am ubber forgetful, something may have fallen through the cracks.
Cracks be sealed!
At http://worldbook.com/typical-course-of-study?wbredirect=1&Itemid=216 , this will allow you to choose your child’s grade level and then physically see what all they need to master before moving up (well, maybe not master because some things take a long time to figure out).
Anyway, head on over there and put your mind at ease!