I don't think it's possible to do any better than this: https://www.youtube.com/watch?v=dlbMuv-jix8

Admittedly, when I found my way to Sussman's course, I had already been programming for awhile, so the "magic" was less of Wow, I can write a computer program that does neat stuff! and more Wow, this makes everything I've been doing so much more clear and simple!