And eventually, life becomes busy enough, the projects become big enough and hard enough, that if you haven't learned to scaffold, to schedule and calendar your time, there are some things you just can't do. Big, important things that you really want to do, and which are impossible to accomplish at 5 a.m. the morning you're supposed to hand it in.
You can still learn those study skills, those work habits -- I think you can learn them at any point. But I wish I'd learned them in high school, when they were trying to teach them to me (and it went blithely in one ear and out the other). I don't know if today's lecture penetrated, but if even one student out of twenty-four starts making better use of her calendar, I will consider today's teaching a triumph.