4
Studying and Thinking About Problems
9. Don't try to bend all problems into a mindless "proportion" approach that
you may have mastered in elementary grades. There are many kinds of proportion, not just one. Problem solving based on proportions appeals to intuition,
not logic. Its use is a hindrance to intellectual progress in science.
10. Think about your answer. See whether it is expressed in the units that
were asked for, and whether it is reasonable in size for the information given. If
not, check back and see if you can locate the trouble.