1. Data: Results from an experiment
Today’s Objective: SWBAT to create graphs and choose the best type of graph to represent data
Data: Results from an experiment

2. Which of these is easiest to read?
The graph?
Or the data?
In 1995, 113 boys and 87 girls had internet at home. The next year, 1996, the numbers increased dramatically, where 179 boys and 161 girls used the internet. In 1997 it continued to increase with 242 boys and 224 girls using the internet. After it continued to slowly increase and by boys and 325 girls used the internet.

3. Bar Graphs
A visual display used to compare the amounts or number of times something happens
*Draw a quick sketch of a bar graph under “bar graph” in your AVN
Ex: different types of birds in an environment

4. What is this bar graph showing us?

5. Line Graphs
A visual display used to show how something changes over time by connecting points on a graph.
*Draw a quick sketch of a Line graph in your AVN
Ex: How weight changes over time

6. What does this line graph represent?

7. Pie chart Pie Graph When showing parts of a whole..i.e. percentages
Must have a title and a legend

8. The Uses of Graphs
Circle graphs show percentages of the whole
Coconut

9. Circle Graph or Pie Graph
A circle graph is used to show how a part of something relates to the whole.
This kind of graph is needed to show percentages effectively.

10. The same data displayed in 3 different types of graphs.
Bar Graph
The same data displayed in 3 different types of graphs.
Circle (Pie) Graph
Line Graph

11. When making a graph from your data, all graphs:
Must have a title
Must have x (horizontal) and y (vertical) axes that are labeled
Must start at zero
Have an equal distance between each number and use 75% of the axes.
Must have a key if using more than one data set

12. Does this graph have all parts that it needs?

13. Graphing your variables

14. What is the Independent variable represented on this graph? Dependent?