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Ahren Paulson.

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Presentation on theme: "Ahren Paulson."— Presentation transcript:

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2 Ahren Paulson

3 Need Help? Office time will be changing Other times? Questions about syllabus/expectations? Last week’s lab?

4 Problem Solving!

5 Understand ‘scientific approach’ and its practice

6 Problem Solving! Understand ‘scientific approach’ and its practice Use ‘scientific approach’ in your own problem-solving activities

7 Problem Solving! Understand ‘scientific approach’ and its practice Use ‘scientific approach’ in your own problem-solving activities Heighten your awareness of the role and construction of a scientific argument

8 Problem Solving! Understand ‘scientific approach’ and its practice Use ‘scientific approach’ in your own problem-solving activities Heighten your awareness of the role and construction of a scientific argument Use thought and existing knowledge in hypothesis generation and testing

9 Definitions “Science is the human endeavor to achieve a better understanding of the world by observation, comparison, experiment, analysis, synthesis, and conceptualization” “Science is a body of facts (‘knowledge’) and the concepts that permit explaining these facts.” Both from Ernst Mayr, What makes biology unique p. 140 (Kindle version)

10 Scientific Method Observation Hypothesize Model Predict Test Repeat?

11 Scientific Method Observation Hypothesize Model Predict Test Repeat? NOT an ‘educated guess’!!!

12 Scientific Method Observation Hypothesize Model Predict Test Repeat?

13 Scientific Method IF (insert mechanism here) “is true” THEN (a predicted outcome based on the mechanism) “must also be true”

14 See for Yourselves

15 Semmelweis

16 “Childbed Fever”

17 Semmelweis “Childbed Fever” Between 10% and 30%“Division I” ward patients died in Childbirth

18 Semmelweis “Childbed Fever” Between 10% and 30%“Division I” ward patients died in Childbirth About 5% of Division II patients died

19 Semmelweis “Childbed Fever” Between 10% and 30%“Division I” ward patients died in Childbirth About 5% of Division II patients died Div I – med students and physicians

20 Semmelweis “Childbed Fever” Between 10% and 30%“Division I” ward patients died in Childbirth About 5% of Division II patients died Div I – med students and physicians Div II - mid wives

21 It’s not limited to “scientists”

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23 275 Feet Tall

24 275 Feet Tall ~ 6100 TONS

25 From where does a tree gain/derive its mass?

26 Develop a hypothesis and a test for it

27 Develop a hypothesis and a test for it “IF this is true, then…”

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29 Ways of knowing what you ‘know’ Empirical--you saw it, touched it, etc. Repeatedly established by others that you ‘trust’ Reasoned argument from documented/identified assumptions & previous knowledge ‘Intuition’ arises from experience & mental participation Never: assertions by authority

30 Smell for yourself What do you notice/observe? What does this ‘tell’ you? –About what your body does –About the molecules What do ‘different smells’ tell you?

31 Smell for yourself So, you’ve formulated a hypothesis… BOTH molecules are C 10 H 14 O New hypothesis? BOTH molecules are

32 Smell for yourself See ‘Duo_Comparator’ in Bio181L_Go What do you conclude?

33 A ‘big part’ of science is observation… SPOTTING A PATTERN

34 Pattern Master YOU find the rules

35 Pattern Master Take a look Bio181L_Go => “PatternMaster” Enter a random# Select ‘Demo’

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38 Perimeter to top inner color Top inner color to lower left color Lower right color to lower left color Given 1-step clockwise*, it could be...

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41 Pattern Master Write Up Description clearly explains underlying rule (50 points)

42 Pattern Master Write Up Description clearly explains underlying rule (50 points) – supplemented with examples

43 Pattern Master Write Up Description clearly explains underlying rule (50 points) – supplemented with examples – sufficient to guide someone who doesn’t know the game

44 Pattern Master Write Up Description clearly explains underlying rule (50 points) – supplemented with examples – sufficient to guide someone who doesn’t know the game – Uploaded to D2L dropbox

45 Pattern Master Write Up Description clearly explains underlying rule (50 points) – supplemented with examples – sufficient to guide someone who doesn’t know the game – Uploaded to D2L dropbox Proposed solution wrong or not understandable… points taken OFF

46 Pattern Master Write Up Description clearly explains underlying rule (50 points) – supplemented with examples – sufficient to guide someone who doesn’t know the game – Uploaded to D2L dropbox Proposed solution wrong or not understandable… points taken OFF More points? Harder puzzle! 45, 50, 55

47 Making Order In PatternMaster, you conjecture from a ‘standing start’, then test resulting hypotheses Now - you’ll investigate building of knowledge, = creation of simplifying view from initially disparate information

48 Creating Order Indicator 1-6; Substance A & B

49 ...“the policemen are there to preserve disorder” Indicator 1-6; Substance A & B These are yours to investigate. How much can you figure out?

50 ...“the policemen are there to preserve disorder” Indicator 1-6; Substance A & B These are yours to investigate. How much can you figure out? What experiments will you perform to gain insight

51 ...“the policemen are there to preserve disorder” Indicator 1-6; Substance A & B These are yours to investigate. How much can you figure out? What experiments will you perform to gain insight As you make observations, can you model the world?

52 ...“the policemen are there to preserve disorder” Indicator 1-6; Substance A & B These are yours to investigate. How much can you figure out? What experiments will you perform to gain insight As you make observations, can you model the world? Suggestion: finding an organized way to record your data is probably a Good Idea

53 Learning from yourself

54 Tips from you to you Strategies, approaches, insights you observed, employed, discovered today For each –state the rule, approach, etc. –explain the context in which it arose –state a circumstance where it could apply in your future This is 20% of next week’s quiz grade, handed in today

55 Quantum Mine Open “Show Beams” “Show Gems” Figure out the rules What do you have?

56 Quantum Mine Turn off ‘hints’

57 Quantum Mine Turn off ‘hints’ Solve one as a group

58 Quantum Mine Turn off ‘hints’ Solve one as a group NO CLICKING until all group members understand and support proposal

59 Quantum Mine Turn off ‘hints’ Solve one as a group NO CLICKING until all group members understand and support proposal MAKE A PREDICTION – IF… THEN

60 Quantum Mine Turn off ‘hints’ Solve one as a group NO CLICKING until all group members understand and support proposal Hypothesis proposer ≠ prediction maker ≠ result analyzer

61 Quantum Mine Turn off ‘hints’ Solve one as a group NO CLICKING until all group members understand and support proposal Hypothesis proposer ≠ prediction maker ≠ result analyzer Successful = 4 bonus pts on PM

62 Homework

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