1. Interpreting Charts and Graphs

2. In order to read and interpret graphs, it is important to understand what the parts of a graph tell us. Let’s start by looking at bar graphs.

3. Bar Graphs • Used to compare data between different groups • Allows you to make quick generalizations

4. Title Scale Bars Labels Parts of a Bar Graph uses keywords to tell what the graph is about shows the units used on the y axis represent the data amount for each group explains what kind of data is shown on the x and y axis

5. Now let’s take a look at what line graphs can tell us.

6. Line Graphs • Track change over time • Allows you to see small changes • Can see change for more than one group over the same time period. (multiple line graphs)

7. Title Scale Points Line Labels Parts of a Line Graph uses keywords to tell what the graph is about shows the units used on the y axis represents the data amount connects the data points explains what kind of data is shown on the x and y axis

8. Now let’s take a look at what circle graphs can tell us.

9. Circle Graphs or Pie Charts • Allows you to compare parts of a whole

10. Title Sectors Legend Parts of a Circle Graph uses keywords to tell what the graph is about represents one part of the data set explains what each sector or slice represents

11. Let’s practice interpreting different types of graphs. The questions without multiple choice answers are questions to think about. Those questions with multiple choice answers need to be answered as directed by your teacher.

12. This includes spires and architectural details but does not include antenna masts. Becker, Lynn. "The World's Tallest Buildings - America's latest Outsourcing". Think about the table. What does this table represent? How do you know? What clues are there that tell you about the information in this chart?

13. Look at the bar graph that was created from the previous table. Answer the following on a notebook piece of paper and turn in. 1. What does the graph show? c. cost of the tallest buildings in the United States a. time it took to build these buildings d. tallest buildings in the United States b. tallest buildings in the world

14. Look at the bar graph that was created from the previous table. 2. Which is the tallest building in the United States? c. Trump International Hotel and Tower a. Sears Tower d. Empire State Building b. Aon Center

15. Look at the bar graph that was created from the previous table. 3. Which two buildings appear to be approximately the same height? c. John Hancock Center and Aon Center • Sears Tower and Trump • International Hotel and Tower • Bank of America Tower and • Sears Tower d. Empire State Building and Chrysler Building

16. Look at the bar graph that was created from the previous table. 4. The Chrysler Building is the shortest bar. Does this mean it is the shortest building in the United States? • Yes • No

17. Look at the line graph. Read each of the parts of the graph. 5. What does the graph show? c. number of years Harris County has existed a. population growth in Harris County d. number of people in each county b. salary growth in Harris County

18. Look at the line graph. Read each of the parts of the graph. 6. What does the y axis represent on this line graph? c. number of years a. which year the population grew d. none of these b. number of people

19. Look at the line graph. Read each of the parts of the graph. 7. What can not be determined by looking at this graph? c. the population of Houston in 1880 a. between which decade the population increased d. that the population more than doubled between 1940 and 1960 b. the approximate number of people in Harris County in 2000

20. Look at the circle graph. Read each part of the graph. 8. Which table below best represents the circle graph? A. B. C. D.

21. Look at the circle graph. Read each part of the graph. 9. What can not be determined by looking at this graph? c. twice as many people have cats rather than fish a. the number of people surveyed d. ¼ of the 8th graders surveyed have no pets b. the percentage of 8th graders who have dogs

22. 10. Which type of graph would you choose to show ticket sales over a period of time? a. bar graph c. circle graph d. none of these b. line graph

23. 11. Which type of graph would best display what percent of the athletic shoe industry is dominated by Nike? Sneakers Sold This Month a. bar graph b. line graph c. circle graph d. none of these

24. 12. Which type of graph would best display the number sold for each company? Sneakers Sold This Month a. bar graph b. line graph c. circle graph d. none of these