If you are talking about the Exploration Series, you don't have any homework. They are seminar type classes where a couple speakers come in every week.
You basically sit with around 60 people and the speakers (for Guest Service, each week had 2 managers in that line of business) and they present to you on the topic. We then broke up into groups at the end and had discussions and share our answers. For example, one week each group was given a problem a guest had and they had to solve it, but couldn't do certain things.
They last two hours, and are fun. I would recommend them!