A quick review of variables…

1. A quick review of variables… http://www.youtube.com/watch?v=hwU3YL_SD70

2. Graphing Notes

3. Independent vs. Dependent Variable Dependent Variable Independent Variable

4. Independent vs. Dependent Variable Graphs have titles (always this format) Dependent Variable Independent Variable

5. Independent vs. Dependent Variable Dependent Variable Always on x-axis Independent Variable

6. Independent vs. Dependent Variable Always on y-axis Dependent Variable Always on x-axis Independent Variable

7. Type of Paper vs. Flight Distance Flight Distance (m) Type of paper

8. Type of Paper vs. Flight Distance Dependent Variable Flight Distance (m) Independent Variable Type of paper

9. Type of Paper vs. Flight Distance If you have categories use a bar graph Flight Distance (m) Type of paper

10. Type of paper vs. Flight Distance Graph the average (mean) Flight Distance (m) Construction Newsprint Printer Type of paper

11. Color of Paper vs. Score on a Test Score on a Test Blue Green Yellow Color of Paper

12. Color of Paper vs. Score on a Test Include a range (high and low) Score on a Test Blue Green Yellow Color of Paper

13. Ramp Height vs. Time 8 6 Time to roll down the ramp (s) 4 2 0 0 5 10 15 20 25 Height of a ramp (cm)

14. Ramp Height vs. Time If you have quantities use a best-fit line graph 8 6 Time to roll down the ramp (s) 4 2 0 0 5 10 15 20 25 Height of a ramp (cm)

15. Ramp Height vs. Time 8 6 Evenly space the numbers Time to roll down the ramp (s) Always start with zero! 4 2 0 0 5 10 15 20 25 Height of a ramp (cm)

16. Ramp Height vs. Time 8 6 Time to roll down the ramp (s) 4 2 0 0 5 10 15 20 25 Height of a ramp (cm)

17. Ramp Height vs. Time Put a dot for each data point (or each average) 8 6 Time to roll down the ramp (s) 4 2 0 0 5 10 15 20 25 Height of a ramp (cm)

18. Ramp Height vs. Time Draw a line that best fits your data 8 6 Time to roll down the ramp (s) 4 2 0 0 5 10 15 20 25 Height of a ramp (cm)

19. Ramp Height vs. Time Draw a line that best fits your data 8 6 Time to roll down the ramp (s) 4 2 0 0 5 10 15 20 25 Height of a ramp (cm)

20. Which type of graph would be best for the following data (bar or line)?What is the effect of the brand of soda on the height of the spray?

21. Which type of graph would be best for the following data (bar or line)?How does the length of a bungee cord affect the distance an attached egg falls?