What courses did Gryffindor and Slytherin take?

Ancient magic writing, metamorphosis, potions, divination, arithmetic divination, flight, defense against dark magic, Muggle research, history, magical biological protection, herbs, apparate.

That's all I remember. Harry's schedule. I don't know. If you want to do it, choose something simple, um ... don't choose potions (unless you want to make a sixth-grade schedule). Be sure to choose Metamorphosis. Just protect magical creatures from dark magic and herbs!