Back just before Xmas, I completed the first leg of this program. It was simple enough, just some short video lectures on robotics and society and how they're changing the world... fair enough.
I have a feeling the second lot, which starts next week, is going to be a touch more involved, however. I just an email from them saying:
Before the course starts, you may find it helpful to brush up on analytic geometry and linear algebra (including points, vectors, matrices, matrix-vector and matrix-matrix multiplication, and linear transformations).
It goes on to suggest looking for courses on those subjects at Kahn Academy - which is great and all, but I'm not sure where I'd even start looking.
I've got a feeling I've, once again, bitten off more than I can chew.