We looked at several related rates problems. The method to solve those is always the same:

- Draw a picture
- Give name to all quantities. Figure out which are changing and which are constant
- Figure out what you want to compute, and what you know already.
- Express what you want in terms of what you know

We worked through Section 3.5.45, 3.9.11, 3.9.23 (C), 3.9.31 (G, still need to finish it).