[fightinJAG]

We homeschool. When people would ask what grade my “3rd-grade” son was in, I would reply 3rd, 4th and 8th. He had the opportunity to study each subject at the level appropriate for him.

[Myrddin]

That's the way to get it done. Move as fast as you can achieve 100% mastery of topic. It's important to make sure you mastered the topic as a poor foundation will impede progress later. Each person has a different aptitude for specific topics. The cattle car approach is a disservice.