Ok, here's what I think. If the school section is something that only a few people should will have back-end access to, I agree it should not be in a wiki -- maybe a blog system that is made to look like the Downloads section.

But if you can see that one of the school's goal down the road is collect information relating to a video (I think this is what you do over at Tablet School), then you should consider the wiki since you will not have time going back to a video that was created five years ago, adding, changing, deleting those extra information in a closed system.