Solving 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:

Homework toight is the worksheet called 35-2, although some of you may have also started the worksheet Compound Circuits Practice which is what we'll be working on tomorrow. Email miss.volkening@gmail.com for PDF scans of worksheets.