Curious -- people love those Little Schemer books. I've read SICP back in the day and loved that. I'd be interested in more of your impressions about LS/SS, if you care to share.
So it is kind of a way of create a Socratic dialog with a book. I found it to be a great way to engage with the material in a way that promotes understanding in a hands on way, but without putting a computer in the way. When you are writing your answers you have to be more intentional than just, "well lets see if this works."