Board Thread:Speculation House/@comment-24.247.91.107-20140511154823/@comment-4010415-20140826230548

People in our world skip grades often. Some people just learn faster than others, same as how some learn more slowly than others and get held back. It is actually believable that Ruby could skip to Beacon.

And PuffDragon is right, we don't know if Ruby got more training than her classmates. I mean, Qrow could've taught her at school and outside of school.