Originally Posted by aculady
they can tell the school in a way that makes sense to them what concepts your child is ready to learn next and what they have already mastered.

Only if your district uses MAP. Otherwise, it's just one more meaningless number.

(Ours doesn't, and other than here, I've never heard of it. If the OP has a 12yo and hasn't heard of MAP, I'm guessing their district doesn't use it, either.)