When I got stuck with a heavy load subject.

Source: Fairchild Books

My my. I stuck in my desk thinking of what to teach tomorrow. It's a new subject for me. I thought it would be easy, but I found out that I need more literature to work with.
Oh anyway, the picture above is not my subject. I googled it and found the pic as an interesting one.

Anyhoo, stuck stuck.. need an inspiration...