Compound Circuits

How do you solve a circuit that has both series and parallel components? That was the topic today. We took notes by solving a problem on the board. Here is the problem before any work was done:

Here is a video that I made a couple of years ago solving this problem.

And here is the problem after it was solved:

Whatever time we didn't spend on this problem (which is a lot of time) you were working on two worksheets: Concept-Development 35-2 and Compound Circuits Practice. Whatever you didn't finish in class is homework.