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Graphs

Graphs. V. Martinez. Essential Question. In what ways do we use graphs to solve problems in our daily lives?. Line Plot –organizes data. Ages of People in an apartment building. Bar Graph. A bar graph is used to compare amounts. Pictograph.

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Graphs

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  1. Graphs V. Martinez

  2. Essential Question • In what ways do we use graphs to solve problems in our daily lives?

  3. Line Plot –organizes data

  4. Ages of People in an apartment building.

  5. Bar Graph • A bar graph is used to compare amounts.

  6. Pictograph • A pictograph uses pictures or symbols to represent an assigned amount of data. • A pictograph takes the form of a bar graph.

  7. Advantages of a pictograph • A pictograph is easy to read. • 2. They show trends in data clearly. • 3. They are fun to use.

  8. Disadvantages of a pictographs • It may be difficult to find a symbol or picture to represent the data. • 2. The key can be confusing to read. 3.  A pictograph can be difficult to make.

  9. Line Graph • A line graph is used to show change over time. • You can use a line graph to look for trends and to make predictions.

  10. Temperature Line Graph

  11. Click here to see more about line graphs • http://www.mathgoodies.com/lessons/graphs/line.html

  12. Line Graph - a graph that shows changes over time. Each year the average rainfall was measured in inches. Use the data in the table to make a Line Graph.

  13. Draw the “L” Box2. Put the title. • Average Yearly Rainfall • l • l • l • l • l • L________________________

  14. 3. Label the x and y axis • Average Yearly Rainfall • 10l • 8 l • 6 l • 4 l • 2 l • 0 L________________________ • 1995 1996 1997 1998 1999 • Average Rainfall

  15. Add the data by placing dots. • Average Yearly Rainfall • 10l x • 8 l x • 6 l x • 4 l • 2 l x • 0 L_______________________x_ • 1995 1996 1997 1998 1999 • Average Rainfall

  16. Connect the dots. TITLE E LEGEND LABELS

  17. Draw a line graph. • Temperatures In NY City • Day 1 43° F • Day 2 53° F • Day 3 35° F • Day 4 57° F • Day 5 59° F • Day 6 67° F

  18. Compare your graph.

  19. Use the data to make a line graph. • Sam's Weight • Month Weight in Kg • January 49 • February 54 • March 61 • April 69 • May 73

  20. The graph is easier to read than the table.What do you notice about Sam’s weight?

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