1. Graphing Info Pay Attention. Getcho lab

2. Do I Have to Write This Down? Up to you How do you learn? – Writing? Reading? Listening?

3. Um, what type of graph should I do? First Things first: When appropriate… DRY MIX – Manipulated (independent) variable is plotted on the x-axis (MIX) – Responding (dependent) variable is plotted on the y-axis (DRY)

4. Line Graph Used to track changes over time – If time is not one of your variables, then it can’t be a line graph Also used to compare changes over the same period of time for more than one groups We use line graphs often in this class

5. Line Graphs: Changes over time “Over time” indicates that time is on the x-axis

6. Pie Charts Pie charts are best to use when you are trying to compare parts of a whole – No change over time – Not used often in this class – The ONLY thing you need to know about pie charts is that we don’t use them in this class…

7. Pie Charts: parts of a whole

8. Bar Graphs For changes for a group or category of things – Not usually for numbers; mostly for things – Very rarely used for this class – The ONLY thing you need to know about bar graphs is that we don’t use them in this class…

9. Bar Graph - categorical data Always a key

10. Choosing Appropriate Graphs… Bar Graph - categorical data – graphing things or “categories” on the x-axis

11. X-Y Plots (Scatter Plots) X-Y plots (scatter plots) are used to determine relationships between the two different things – We use this a lot in this class

12. Trend Line

13. X-Y Plots (Scatter Plots) Often they need a trend (best fit) line – A line on a graph showing the general direction that a group of points seem to be heading – NOT “Connect the dots” – Although it might seem like it if your data is linear – The idea is to try to get a line that has virtually equal numbers of points on either side

14. Best Fit Line or Trend Line

15. Choosing the Correct Graph Type In science class, you will use line graphs and scatter plots – It is very rare that you will use anything else

16. ISD MS Physical Science Graphing Rubric Chose the wrong graph type? – No points for you! Got your axis mixed up? – No points for you! No units or variables on your axis? – No points for you! Connected the dots on a scatter plot? – No points for you!

17. Rubric 1 pt. Appropriate type of graph 1 pt. Scale – equal intervals starting at zero for each axis, axis breaks acceptable 2 pt. 1 pt. each for axis correctly labeled with units 1 pt. Title must have both the MV and RV 5 pts.Total *Use the rubric to create or fix your graph