1. Creating Graphs

2. Why do we make graphs?

3. Creating Graphs To view the data in an organized understandable way.

4. Creating Graphs Which is easier to read??:

5. Creating Graphs 17 out of 100 respondents prefer Isaac Newton 53 out of 100 respondents prefer Fig Newton 29 out of 100 respondents prefer Wayne Newton or

6. Creating Graphs Of Course… It’s the graph

7. Creating Graphs In the graph below, there are two factors: the INDEPENDENT and DEPENDENT variables

8. Creating Graphs The INDEPENDENT variable: Factors that could be changed in an experiment. The DEPENDENT variable: Changes as a result of a change in the Independent variable.

9. Creating Graphs The INDEPENDENT variable: Factors that could be changed in an experiment. ( Name of Newton ) The DEPENDENT variable: Changes as a result of a change in the Independent variable. ( % of Respondents)

10. Creating Graphs Looking at the slide below: Dependent Variable Independent Variable

11. Creating Graphs This graph also has a name: It’s a BAR graph

12. Creating Graphs There are also pie charts.

13. Creating Graphs And Line Graphs

14. Creating Graphs Remember: Independent & Dependent Variables Dependent Variable Independent Variable

15. Which Graph type do I Choose?... a Line graph. Line graphs are used to track changes over short and long periods of time. Line graphs can also be used to compare changes over the same period of time for more than one group.... a Pie Chart. Pie charts are best to use when you are trying to compare parts of a whole. They do not show changes over time.... a Bar Graph. Bar graphs are used to compare things between different groups or to track changes over time. However, when trying to measure change over time, bar graphs are best when the changes are larger.

16. Other Examples of Line Graphs http://www.mathgoodies.com/lessons /graphs/line.htmlhttp://www.mathgoodies.com/lessons /graphs/line.html

17. Creating Graphs Now to Create a Graph Look at your data - Independent Variable on the X-Axis Dependent Variable on the Y-Axis Boiling temperature for salt solution

18. Creating Graphs Now to Create a Graph Look at your data - Boiling temperature for salt solution Dependent VariableIndependent Variable

19. Creating Graphs Let’s graph it. Boiling temperature for salt solution 1) Place Independent Variable on X-Axis 0 30 60 90 120 150 180 210 240

20. Creating Graphs Boiling temperature for salt solution 2) Place Dependent Variable on Y-Axis 0 30 60 90 120 150 180 210 240 0 20 40 60 80 100 120

21. Creating Graphs Boiling temperature for salt solution 3) Plot your points 0 30 60 90 120 150 180 210 240 0 20 40 60 80 100 120

22. Creating Graphs Boiling temperature for salt solution 4) Label the X and Y axis 0 30 60 90 120 150 180 210 240 0 20 40 60 80 100 120 Time (sec) Temp C

23. Creating Graphs Boiling temperature for salt solution 5) Title the graph 0 30 60 90 120 150 180 210 240 0 20 40 60 80 100 120 Time (sec) Temp (C) Boiling Temp for Salt Solution