1. Write this in your table of contents and then set up a page for it. Friday 9/16 Date Activity Page 9/16 Perceptions and Assumptions

2. Class objectives 1. We will learn that perception is how you interpret your observations. 2. We will learn that assumptions are things you take for granted in a situation. 3. We will learn that scientific bias occurs when scientists allow their assumptions to affect their interpretation of data.

3. How will we do it… Taking notes Activities Discussion

4. Seeing is believing… Or is it?

5. NOTES Perception: how you interpret your observations. Assumptions: something you take for granted in a situation.

6. Notes Perception 1. We choose the observations that we pay attention to. 2. We interpret the information in a way that makes sense to us based on our assumptions.

7. NOTES Our assumptions (things we take for granted) are based on: 1. Our experiences 2. Our preferences 3. Our beliefs

8. NOTES Scientific bias: allowing your assumptions to affect your interpretation of data Always be aware of your assumptions!

9. Perceptions/Assumptions 1.Where is your attention? 2.What are your assumptions?

10. Perceptions/Assumptions 1.Where is your attention? 2.What are your assumptions?

11. Perceptions/Assumptions 1.Where is your attention? 2.What are your assumptions?

12. Perceptions/Assumptions 1.Where is your attention? 2.What are your assumptions?

13. Perceptions/Assumptions 1.Where is your attention? 2.What are your assumptions?

14. Perceptions/Assumptions 1.Where is your attention? 2.What are your assumptions?

15. Perceptions/Assumptions 1.Where is your attention? 2.What are your assumptions?

16. STORY #1 There is a cabin on the side of a mountain. Three people are inside and they are dead. How did they die? Answer: They were killed in a plane crash The three people were the pilot, co-pilot, and navigator. They crashed in snow storm. False Assumption: That the cabin was a mountain cabin. It was actually the cabin of a jetliner.

17. STORY #2 A woman leaves home and makes three left turns. She returns home again. On the way, she passed two women with masks. Who were the two women? Answer: The umpire and the catcher. False Assumption: That the woman was walking on city streets. She really is on a baseball field

18. STORY #3 A man and his son were rock climbing on a particularly dangerous mountain when they slipped and fell. The man was killed, but the son lived and was rushed to a hospital. The surgeon looked at the young man and declared, "I can't operate on this boy: he is my son." How can this be? Answer: The surgeon was the boy's mother. False Assumption: That the surgeon was a man.

19. STORY #4 Preston and his men searched the frozen tundra for escaped convict Ben Barker. Just as they were about to give up, one of Preston's men spotted a body. Barker was found lying dead in the snow. There were no tracks leading to or from the body. The cause of death was partially due to the unopened pack on his back. Barker did not die of thirst, hunger, or cold. What was in Barker's pack that led to his death? Answer: An unopened parachute. False Assumption: That Barker’s “pack” was a backpack, not a parachute pack. Also, he had arrived there somehow by land, not by air.