Reflection: Flexibility Electromagnetic Investigations - Day 4 - Section 2: Photoelectric Effect Revisited


One thing has become pretty apparent: I do not have the right materials for students to truly demonstrate the particulate nature of light via the photocell station. Students are clearly getting some output energy with the red light bulb as either the bulb itself is not purely red (with perhaps wavelengths of orange or yellow sufficient to liberate electrons) or the photocells themselves are highly sensitive and have a fairly low energy threshold to overcome. I need to adjust my expectations about student performance at this station and share the new expectations with them quickly.

  Adjusting Expectations as a Result of New Information
  Flexibility: Adjusting Expectations as a Result of New Information
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Electromagnetic Investigations - Day 4

Unit 4: Electromagnetics
Lesson 11 of 17

Objective: Students will continue to explore four big ideas in electromagnetics - light behaving like a wave and a particle, and the two ways in which electric and magnetic fields induce one another.

Big Idea: In science, we make claims based on evidence, especially when the claims are not intuitive, as is the case with electromagnetics.

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