Lesson 9-13 for exercise sets. &KDSWHU
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1.Make a graph of how you spend a typical 24-hour weekday.
- List how much time you spend each day on each activity.
Use these categories for your data: school, travel, sports, eating,
sleeping, and free time - Record your data in a table.
- Use the data to make a circle graph. Label your graph and give it a title.
- Write a brief summary of what your graph shows.
- Compare your graph with those of your classmates. What similarities
do you notice? How do the graphs differ?
2.Discuss and Write What was the easiest part of the graph-making task?
What was the most difficult part of the construction? Explain.
Use the protractor to measure and draw
the central angle for another section.
Carbon
64.8
234
65%
18%
Oxygen
Continue measuring and drawing angles until
the graph is finished. Label each section with
its element and percent. Give your graph a title.
Oxygen
65%
Carbon
Hydrogen 18%
10%
Nitrogen
3%
All others
4%
Major Elements
in the Body
Iman surveys all her classmates about their favorite sport. Of students
surveyed, 15 name soccer, 3 name baseball, and 12 name football. Make
a circle graph. Label each section of the graph with the name of the sport
and the percent of the class naming that sport as the favorite.
- Find the number of students surveyed.
15 3 12 30 - Find the percent that liked each sport.
Then find the size of each sector.
Soccer: 0.5 50%, and 0.5 • 360
180
Baseball: 0.1 10%; and 0.1 • 360
36
Football: 0.4 40%, and 0.4 • 360
144
- Use the data to make a circle graph.
12 6
30 6
12
30
3 3
30 3
3
30
15 15
30 15
15
30
1
Soccer
50%
Baseball
10%
Football
40%
Popularity of Sports