1. The Scientific Method
Short Video of Big Bang Theory: click on picture

2. Steps in the Scientific Method
Observe and ask a Question
Form a Hypothesis

3. Hypotheses Educated Guess
Observation
Research
Literature
Hypotheses are tentative scientific explanations for a set of observations that can be tested

4. THEORY LAWS FACTS HYPOTHESIS
Video link to a Short video to explain differences in facts, laws, etc under “FACTS”
FACTS

5. Steps in the Scientific Method
Observe and ask a Question
Form a Hypothesis
Controlled Experiment

6. Controlled Experiments
Only one variable is changed
Variable – factors that change
Independent variable:
manipulated
Dependent variable:
Responding
Measured

7. Scientific Methodology
Design controlled experiment
Two test groups
1. Experimental group – Independent variable changed
2. Control group – Independent variable NOT changed

8. Situation 1
Smithers thinks that a special juice will increase the productivity of workers. He creates two groups of 50 workers each and assigns each group the same task (in this case, they're supposed to staple a set of papers). Group A is given the special juice to drink while they work. Group B is not given the special juice. After an hour, Smithers counts how many stacks of papers each group has made. Group A made 1,587 stacks, Group B made 2,113 stacks.
Control group:
Experimental group:
Independent variable:
Dependent variable:
Conclusion:
Let a student read the scenario out loud and give the students time to write down their guesses for the bulleted points on their own scrap piece of paper.

9. Situation 2 Control group: Experimental group: Independent variable:
Krusty was told that a certain itching powder was the newest best thing on the market, it even claims to cause 50% longer lasting itches. Interested in this product, he buys the itching powder and compares it to his usual product. One test subject (A) is sprinkled with the original itching powder, and another test subject (B) was sprinkled with the Experimental itching powder. Subject A reported having itches for 30 minutes. Subject B reported to have itches for 45 minutes.
Control group:
Experimental group:
Independent variable:
Dependent variable:
Conclusion:
Let a student read the scenario out loud and give the students time to write down their guesses for the bulleted points on their own scrap piece of paper.

10. Steps in the Scientific Method
Observe and ask a Question
Form a Hypothesis
Controlled Experiment
Collect & Analyze Data

11. The Amount of Defective Cars Produced in Car Factories
Graphs
1. Bar Graph
The Amount of Defective Cars Produced in Car Factories
Bar Graphs
One time comparisons
Often categories
Can be numerical too!
Talk about dep & indep variables & when to use a bar graph

12. Graphs 2. Line Graph Line Graphs Show change over time
Often numerical data
Talk about dep & indep variables & when to use a line graph

13. Ask which graph better represents the data & why
Amount
Ask which graph better represents the data & why

14. Plotting Data
DRY MIX: DRY(Dependent Responding variable on Y-AXIS) & MIX (Manipulated Independent on X-AXIS)

15. Talk about dep & indep variables & Purpose of experiment…results
Talk about dep & indep variables & Purpose of experiment…results. Try to point out all information about the experiment should be able to be extrapolated from a graph. (Importance of TITLE)

16. Steps in the Scientific Method
Observe and ask a Question
Form a Hypothesis
Controlled Experiment
Collect & Analyze Data
Draw Conclusion
Publish Results

17. Publish Results
Primary Literature
Peer reviewed