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I think you could play with the words in this problem and have it be
Let's say that I ask you which car gets the BEST mileage. The fact that
you are comparing how many miles each car can go on a set amount of gas
(in this case one gallon) makes me think of this as an absolute
comparison. There is only one variable. . .the miles. The gallons are
Compare this to the "Which class has the MOST girls in it?" question.
There are two variables when you start to deal with the relative
comparison. You take into account the number of girls and the number of
If you asked me which car got the BEST mileage depending on its size
(measured in volume or weight), then I would say you had a relative
comparison going on.
Just some thoughts.
Kimberly K. Loomis writes:
>This question can across my desk. It seems that Las Vegas is not the only
>group taking Algebra this summer. Maybe you might like to respond.
>We are taking the Patterns, Functions and Algebra class by video tape and
>have a question about possible solutions to Session 4 problem A4. The
>is absolute versus relative comparison. One suggested example of
>was to compare the mles per gallon ratings of various new cars. For
>22 mpg versus 25 mpg. Since this is a "per gallon" comparison, some
>members think this is a relative comparison ( 22/1 and 25/1). Which
>School District 51
>Grand Junction, Colorado
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