1. How to set up successful graphs

2. Variables Definition – a type of category you are trying to measure
an object, event, idea, feeling, time period
Types of Variables
Independent
Dependent

3. Independent Variable
A variable whose value does not depend on that of another
Is not changed by other variables being measured
What you choose and manipulate

4. Dependent Variable A variable whose value depends on that of another
Depends on the independent variable
What you measure in the experiment

5. How to determine the variables
Fill in the variables to determine which makes the most sense
(Independent variable) causes a change in (Dependent variable) and it isn’t possible that (Dependent variable) could cause a change in (Independent variable).

6. (This is for your dependent variable)
How to set up your graph!
Y Axis
(This is for your dependent variable)

7. How to set up your graph! X Axis
(This is for your independent variable)

8. Description that explains the relationship between the variables
Title
The relationship between the number of coils on an electromagnet and the number of paper clips picked up
Description that explains the relationship between the variables

9. Axis labels Label the x-axis and the y-axis
The relationship between the number of coils on an electromagnet and the number of paper clips picked up
Label the x-axis and the y-axis
Y Axis = Dependent Variable
Number of paper clips
X Axis = Independent Variable
Number of coils

10. The graph should be as large as possible for your paper and data.
SCale
The relationship between the number of coils on an electromagnet and the number of paper clips picked up
The graph should be as large as possible for your paper and data.

11. How to determine the scale
# of Coils
# of Paper clips 5 4 10 7 15 11 20 14 25 18
Determine the numerical value for each grid unit that best fits the data.
ℎ𝑖𝑔ℎ𝑒𝑠𝑡 𝑛𝑢𝑚𝑏𝑒𝑟 𝑛𝑢𝑚𝑏𝑒𝑟 𝑜𝑓 𝑙𝑖𝑛𝑒𝑠
25 7 =3.6 −𝑅𝑜𝑢𝑛𝑑 𝑡𝑜 4 coils per line
18 6 =3 - Use 3 paper clips per line

12. Labeling the axes
The relationship between the number of coils on an electromagnet and the number of paper clips picked up 18 15 12 9 6 3

13. Graphing data
The relationship between the number of coils on an electromagnet and the number of paper clips picked up 18 15 12 9
Number of Paper Clips 6 3 4 8 12 16 20 24 28
Number of Coils

14. When to use… Bar graphs Line Graphs For continuous data
Used to show data that are not continuous.
Allows us to compare data like amounts or frequency or categories
Allow us to make generalizations about the data
Help us see differences in data
Line Graphs
For continuous data
Useful for showing trends over time