2.2+Comparing+Your+Class+to+the+Nation+0910


 * **Problem 2.2 Comparing Your Class to the Nation

The Big Idea:** Many important practical and mathematical applications involve comparing quantities of one kind or another; it is important to know which method to use and how we should use them.


 * Investigation 2:** Comparing by Finding Percents

What methods are there for comparing things?
 * Essential Question:**

** A. Look back at the three statements you wrote in part B of Problem 2.1 comparing the numbers of males and females participants in the various activities. Now, make the same comparison for boys and girls in your class. Some comparisons are 5 to 3 like basketball. 7/3 for biking and 100% of boys like swimming and 90% if girls like to swim.

B.Compare the statements comparing spots activities of all students about the national data. When I compared tis data to the national data I saw that I both added ratios,percents,and fractions.

C.Wtire three statements comparing sports activities of all students in you class to those of 1. 12-17 years old in the national survey 2. 55-64 years old in the national survey

In my class 2 boys and 2 girls like fishing compared to 4,945,000 people in the national. All boys in my class and 90% of the girls like swimming compared to 10,874,000.

7 boys 3 girls like biking compared to 8,794,000.

Follow up.

1. My class data is similar the the national data because we are both comparing our data but the differences are the the national data has a bigger population that they compared to.