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Teaching Electricity by Analogy

Teaching Electricity by Analogy. Nobody has ever seen an electron Electricity is an abstract concept If we teach a related concrete idea first, then the abstract idea will be easier to understand Drama is fun to use because it necessitates student engagement. Drama: Current Analogy.

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Teaching Electricity by Analogy

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  1. Teaching Electricity by Analogy • Nobody has ever seen an electron • Electricity is an abstract concept • If we teach a related concrete idea first, then the abstract idea will be easier to understand • Drama is fun to use because it necessitates student engagement

  2. Drama: Current Analogy • Get three volunteers to each count the class • Oops! – ambiguity • No need to recount • Digits come in groups of 20 (normally) – called people • Electrons come in groups of about 6,250,000,000,000,000,000 called Coulombs

  3. Electric Current Analogy using Drama • Digits are electrons • People are Coulombs • Minutes are seconds • Counters are ammeters • A Power Pack is an electron “waver-on”

  4. A A A • Series Circuit

  5. Series Circuit Analogy - Current • Concrete version of abstract idea • Electrons are not “used up” • A real circuit on a bench will be more understandable

  6. And what’s obvious to the participants…. Current in series is the same everywhere

  7. A A A Parallel Circuit

  8. Parallel Circuit Analogy – Current • Drama is a concrete version of an abstract idea • A real circuit on a bench will be more understandable

  9. Again, what’s obvious to the participants… Current in parallel is shared

  10. A summary of the behaviour of current Current in parallel is shared and Current in series is the same

  11. Energy Couriers continued • E

  12. Energy Couriers continued • E, PE

  13. Energy Couriers continued • E, PE, EPE

  14. Energy Couriers continued • E, PE, EPE, EPED

  15. Energy Couriers continued • E, PE, EPE, EPED • (or “Voltage” if you must) • Two tongued electron taster • or EPED meter • or Voltmeter

  16. Simple Circuit

  17. V V Simple Circuit

  18. Simple Circuit V

  19. Simple Circuit V

  20. The energy given to a circuit by the power pack is ……………….. the energy used up by the light-bulb Simple Circuit

  21. The energy given to a circuit by the power pack is the same as the energy used up by the light-bulb Simple Circuit

  22. The energy given to a circuit by the power pack is equal to the energy used up by the light-bulb Simple Circuit

  23. Parallel Circuit

  24. V V V Parallel Circuit

  25. V Parallel Circuit

  26. V Parallel Circuit

  27. V • Parallel Circuit

  28. Energy Couriers • Electrons carry energy • Therefore, so do Coulombs • We can model this with a person (or a “Coulomb”) carrying water in a beaker • The water represents energy. A full beaker is 12 Joules (for THAT Coulomb)

  29. Parallel Circuit Analogy - Voltage • Concrete version of abstract idea • A real circuit on a bench will be more understandable

  30. And what is obvious to the participants… Voltage in parallel is the same

  31. Series Circuit

  32. V V V Series Circuit

  33. V Series Circuit

  34. V • Series Circuit

  35. V • Series Circuit

  36. Series Circuit Analogy - Voltage • Concrete version of abstract idea • A real circuit on a bench will be more understandable

  37. Again, what is obvious to the participants Voltage in series is shared

  38. Series & Parallel: Voltage & Current Summary Version 1

  39. Series & Parallel: Voltage & Current Summary Version 1

  40. Series & Parallel: Voltage & Current Summary Version 1

  41. Series & Parallel: Voltage & Current Summary Version 1

  42. Series & Parallel: Voltage & Current Summary Version 1

  43. Series & Parallel: Voltage & Current Summary Version 1

  44. Series & Parallel: Voltage & Current Summary Version 2

  45. Series & Parallel: Voltage & Current Summary Version 2

  46. Series & Parallel: Voltage & Current Summary Version 2

  47. Series & Parallel: Voltage & Current Summary Version 2

  48. Series & Parallel: Voltage & Current Summary Version 2

  49. Series & Parallel: Voltage & Current Summary Version 3

  50. Series & Parallel: Voltage & Current Summary Version 3

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