1. Let’s Graph
Unit 1

2. Why Graph?
BRAINSTORM
Spend 5 minutes writing down why graphing can be useful…
What can we learn from the following graphs?

7. Some Important Terms To Know…
All graphs must include 5 major parts
Title: Be specific
Independent Variable: What WE can control (X axis)
The Dependent Variable: The change or outcome based on the independent variable (Y axis)
The Scales for each variable: All data points must be used & YOU NEED TO USE THE WHOLE PAPER!!!
The Legend: A short paragraph…kind of like the Cornell Notes Summary
Key: You must ALWAYS create a key

8. Independent & Dependent Variables
Independent variable is the one WE can control.
Examples: Time, distance, length, temperature, etc
Always goes on the X axis (bottom)
Dependent variable DEPENDS on what happens when we change the independent variable
Always goes on the Y axis (side)
Example: WE control the depth, but the number of bubbles change.
Did we control the number of bubbles?

9. Let’s Look… Number of Bubbles Depth in Meters
I made some errors on purpose. Can you see them? How can we improve this graph?