1. Graphing!

2. Independent variable Goes on X axis
What is changed/controlled in an experiment or time Y X

3. Dependent variable Goes on the Y axis
The thing being measured/observed during an experiment Y X

4. Types of graphs
Line- shows how independent variable affects dependent variable.
Example: how time
affected the number
of bacteria

5. Types of graphs Bar- shows relationship between groups/categories
Example: Number of birds that like eating different types of seeds
Number of Birds Seed Preference

6. Types of Graphs Pie- show percentage or portions of one category
Example: How much water
used in different areas of the
American home.

7. Graph Titles
Number of Teenagers with Cellphones
ALWAYSSSSS has independent and dependent variable in the title!!!!!

8. Steps to Make Graph Fit!
Formula:
Range = Highest Value – Lowest Value
Scale = Range ÷ Number of Boxes on Axis
Find the range of date for the Y Axis (67-32 = 35)
Count number of lines/boxes on the Y axis graph paper (20)
Divide the range number by the number of boxes on Y axis (35÷20 = 1.75)
Round UP if needed!!! (1.75 = 2)
Each box will now be worth 2 points
Repeat steps above for X axis

9. Labeling Axes
If there is numbers or categories on the graph, it must be labeled!

10. T.A.I.L.S Title: Includes both variables
Axis: Independent variable on X-axis and dependent variable on Y-axis
Interval: The interval is appropriate for this scale.
Label: Both axes are labeled.
Scale: Min and max values are appropriate.