So, week 1, the bouncing ball. I initially thought about skipping ahead to the more interesting ones. And then I thought, NO, no one's above doing a bouncing ball. Too many people early in their animation education try to skip or hurry past the bouncing ball. It is a good thing to try and master this before you move on to anything more difficult. If you cannot animate a convincing bouncing ball, you will not be able to animate a character or a creature. Take the time and set up a good foundation for your animation education.
I'm really looking forward to figuring out how to get a character to zip up a jacket.