Today:
- Announcements
- Your shapes homework is returned: graded pp. 220--, #5, 30, and 52.
- Your third hour exam is on Monday, covering material from 2.5 to
3.3 (shapes).
- No quiz today.
- Jack asked about old exams. Here is one, from the last time I taught 128. And here's a key.
- We'll begin with your questions, and, if there's time, move on.
- We'll take a look at section 3.7 -- optimization
problems. The best way to explain is to do some examples, but the point
is that we're going to be looking for extrema of
functions. There are thus two things to do:
- Come up with the appropriate function, and then
- find extrema in the ordinary ways.
As usual, I recommend my "UPCE" (oopsie!) strategy for solving story
problems:
- Understand
- Plan
- Carry out
- Evaluate
(By the way: I say "my" strategy, but UPCE is basically the strategy of
Georgy Polya, who wrote How to Solve It -- a very famous book, and
well worth the read. His "E" includes "Extend" -- can I solve more than
this given problem?)
Examples:
Website maintained by Andy Long.
Comments appreciated.