NATURES OF SCIENCE IN THE LAB:  THE CREATE-TEST-USE DISTINCTION David Geelan Original Concept: Frank Jenkins
ASSUMPTIONS <ul><li>Instructors teach better and students learn better when they know the rules of the knowledge game </li...
DEFINITION OF SCIENCE <ul><li>Science  is the study of the natural world in an attempt to describe, explain, and predict c...
CHOICES WHEN PRESENTING A CONCEPT <ul><li>Inductive  (creating a concept) </li></ul><ul><li>Hypothetico-inductive  (testin...
NATURES OF SCIENCE Lab Type Nature of Science Philosopher of Science Date of Intro. Create Inductive (spec  gen) Francis ...
EVIDENTIAL BASES Evidential Base Description Laboratory (wet lab) evidence gathered in the laboratory by the students Lab ...
TESTING SCIENTIFIC CONCEPTS <ul><li>Explanatory Power </li></ul><ul><li>logical consistency </li></ul><ul><li>*internal co...
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    1. 1. NATURES OF SCIENCE IN THE LAB: THE CREATE-TEST-USE DISTINCTION David Geelan Original Concept: Frank Jenkins
    2. 2. ASSUMPTIONS <ul><li>Instructors teach better and students learn better when they know the rules of the knowledge game </li></ul><ul><li>Create  test  use reasonably represents a cycle of science and of science education work on each and every concept </li></ul><ul><li>The nature of science is best viewed as the nature s of science </li></ul>
    3. 3. DEFINITION OF SCIENCE <ul><li>Science is the study of the natural world in an attempt to describe, explain, and predict changes and products </li></ul><ul><li>A goal of science is to create, test, and use (with confidence) a scientific concept </li></ul>
    4. 4. CHOICES WHEN PRESENTING A CONCEPT <ul><li>Inductive (creating a concept) </li></ul><ul><li>Hypothetico-inductive (testing) </li></ul><ul><li>Hypothetico-deductive (testing) </li></ul><ul><li>Deductive (using the concept) </li></ul>
    5. 5. NATURES OF SCIENCE Lab Type Nature of Science Philosopher of Science Date of Intro. Create Inductive (spec  gen) Francis Bacon 1600s Test Hypothetico-deductive Karl Popper 1930s+ Use Deductive (gen  spec) Aristotle 300s BC
    6. 6. EVIDENTIAL BASES Evidential Base Description Laboratory (wet lab) evidence gathered in the laboratory by the students Lab exercise (dry lab) evidence gathered for the students and put into a lab format Computer simulation evidence provided in a computer simulation/animation format Computer video evidence provided in a video format (to be analyzed by students)
    7. 7. TESTING SCIENTIFIC CONCEPTS <ul><li>Explanatory Power </li></ul><ul><li>logical consistency </li></ul><ul><li>*internal consistency </li></ul><ul><li>*ext. consistency </li></ul><ul><li>Descriptive Power </li></ul><ul><li>theoretical descrip. </li></ul><ul><li>empirical description </li></ul><ul><li>Predictive Power </li></ul><ul><li>the most severe test </li></ul><ul><li>based upon the concept </li></ul><ul><li>correct predictions are tested to see if they are verified or falsified </li></ul>
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