Interactive Lecture Demonstrations ILDs

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Interactive Lecture Demonstrations (ILDs)

• Ronald K. Thornton
• David R. Sokoloff

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The 8 step procedure

• 1. Do the demonstration without graphs
• 2. Students record individual predictions
• 3. Small group discussions
• 4. Whole class discussion
• 5. Students record final prediction (collect)
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• 6. Do the demonstration with graphs
• 7. Discuss results with class
• 8. Extend results to analogous situations

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The Original 5 ILDs

• 1. Human Motion - students walk d-t, v-t graphs
• 2. Motion with Carts - fan accelerates to/from
• 3. Newtons 1 2 - cart pulled by falling mass
• 4. Newtons 3rd - 2 force probes pull each other
• 5. Energy of a Cart - PE/KE moving up ramp

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Additional ILD sheets

• 6. Collisions - equal/unequal masses engage
  in elastic inelastic collisions
• 7. Harmonic motion - a mass hangs on a spring
  and oscillates up and down (KE, GPE, SPE)

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ILDs recently developed

• 8. Sound - waveform of sounds
• 9. Light - reflection refraction
• 10. Lenses - image formation
• 11. Magnetism - electromagnetism
• 12. Induction - in a coil
• 13. Potential/Energy - compare GPE EP
• 14. Electric Fields - particles interacting

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ILD 2004 Manual

• Wiley has recently published all of these 14 ILDs
  and more in one volume
• Check the Wiley website for details

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Research Results

• Thornton Sokoloff reported research showing the
  benefits of ILDs for conceptual learning

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Research Results

• Thornton Sokoloff reported research showing the
  benefits of ILDs for conceptual learning
• Wittmann did extensive research on the benefits
  of ILDs RealTime Physics. For ILDs, benefits
  only appear when the instructors closely follow
  the 8-point procedure in both spirit and letter

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Research Results

• Thornton Sokoloff reported research showing the
  benefits of ILDs for conceptual learning
• Wittmann did extensive research on the benefits
  of ILDs RealTime Physics. For ILDs, benefits
  only appear when the instructors closely follow
  the 8-point procedure in both spirit and letter
• http//perlnet.umephy.maine.edu/classes/rtpandild.
  htm