1.3+Getting+the+Message+Across+0910

M. B. Block D 2/11/09 **Comparing and Scaling**

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.
 * The Big Idea:**
 * Investigation 1:** Making Comparisons
 * Essential Question:** What methods are there for comparing things?


 * 1.3 Getting the Message Across**
 * Suppose you were asked to write a news story about the popula****rity of camping in the United States on the data in the table.[[image:file:///Users/student/Library/Caches/TemporaryItems/msoclip/0clip_image002.png width="434" height="58"]]**


 * 1) **What headline would you use for your story? What would your first sentence be?**
 * Headline:** NEW TEENAGER HABIT!!!
 * First sentence:** Based on recent researches, more teenagers go camping twice a year than any other age groups.


 * 1) **Write five statements you could use in your story to compare the popularity of camping among people in three age groups. In each statement, be clear about which groups you are comparing. Your comparisons should be specific and based on mathematics.**
 * 1** People who are in the age group 25-34 outnumber people who go camping twice a year in ages 25-34 by a ratio of 4 to 1
 * 2** Students who go camping twice a year in ages 12-17 outnumber the students who go camping twice a year in ages 18-24 by 569,000
 * 3** ¼ of students in ages 12-17 go camping twice a year
 * 4** 17% of students in ages 18-24 go camping twice a year
 * 5** The amount of people in ages 25-34 is about 2 times bigger than ages 12-17


 * Follow up**

About 22.3% of people go camping twice a year in ages 12-34
 * According to the data, what percent of people from age 12 to 34 go camping at least twice a year?**