Inventing with hypotheses (1)

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Inventing with hypotheses (1)

  1. 1. Inventing with hypotheses writ 1133
  2. 2. Inventing with hypotheses writ 1133 Automobile 1 Automobile 1 was tested by assessing the damage done to a crash test dummy when the car was driven at 35 mph head on into a concrete barrier and when it was hit on the slide by a 3,000 lb. trolley moving at 35 mph. The test showed that, under these conditions, there is a 10% chance of life-threatening injury.
  3. 3. Inventing with hypotheses writ 1133 Automobile 2 Automobile 2 was tested by assessing the damage done to a human driver when the car was driven at 35 mph down a pleasant, traffic-free country lane surrounded by daisies and daffodils on a sunny day in May. The test showed that, under these conditions, there is a 0% chance of life-threatening injury.
  4. 4. Inventing with hypotheses writ 1133 What is a hypothesis? How do you test one? And why?
  5. 5. Inventing with hypotheses writ 1133 Rene Descartes
  6. 6. <ul><li>For example: </li></ul><ul><ul><li>WRIT students will go on to achieve academic success, because they are very bright and very hardworking. </li></ul></ul><ul><ul><li>WRIT students will go on to achieve academic success, because I am the greatest teacher who ever lived. </li></ul></ul>Inventing with hypotheses writ 1133 hypothesis A hypothesis is an empirically falsifiable explanation of observable phenomena.
  7. 7. Inventing with hypotheses writ 1133 hypothesis Claim: WRIT students will go on to achieve academic success. A reason: Because they are very bright and very hardworking. A hypothesis is an argument: It is made up of (at least) two assertions: a debatable claim + a reason or reasons for believing the claim.
  8. 8. Inventing with hypotheses writ 1133 hypothesis A hypothesis is an argument: It is made up of (at least) two assertions: a debatable claim + a reason or reasons for believing the claim. Claim: WRIT students will go on to achieve academic success. A reason: Because I am the greatest teacher who ever lived.
  9. 9. <ul><li>These statements are falsifiable: </li></ul><ul><ul><li>The sun will rise again tomorrow, because it (the sun) revolves from east to west around the earth. </li></ul></ul><ul><ul><li>The sun will rise again tomorrow, because the earth, which revolves around the sun, makes a complete easterly rotation on its axis once every 24 hours. </li></ul></ul>Inventing with hypotheses writ 1133 falsifiability To say that a hypothesis is falsifiable means that it can be shown to be false.
  10. 10. <ul><li>However, this statement is not falsifiable: </li></ul><ul><ul><li>The sun will rise again tomorrow, because Mother Nature wills it. </li></ul></ul>Inventing with hypotheses writ 1133 falsifiability To say that a hypothesis is falsifiable means that it can be shown to be false.
  11. 11. Inventing with hypotheses Imagine that the computer had never been invented. How would higher education be better off, worse off, or otherwise different? writ 1133
  12. 12. Inventing with hypotheses Imagine that the computer had never been invented. How would higher education be better off, worse off, or otherwise different? Why do you believe that? . . . writ 1133
  13. 13. Inventing with hypotheses Imagine that the computer had never been invented. How would higher education be better off, worse off, or otherwise different? Why do you believe that? . . . How could you prove this? writ 1133

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