Friday, December 5, 2008

math reflections

1. Explain what you think each word means when it is used to make a comparison.a) ratio to say a thing is more or less liked or used than something else.

-b) percent part to whole

-c) fraction - part to whole

-d) difference subtraction

–2) Give an example of a situation using each concept to compare two quantities. (150 total seventh graders, 80 girls, 70 boys)

a) ratio
80 to 70
-b) percent
80/150= 53%
-c) fraction
80/150= 8/15
-d) difference- 80 - 70 = 10 girls than boys