## Reflection: Checks for Understanding Resonance - Section 2: Resonance Video and Definition

When I asked the students to identify the object experiencing the large amplitude, I often get the answer, "the sound waves". It is clear to me that students have difficulty decoding the definition of resonance and applying it to real-life examples, which is why I assigned it form homework.

However, it would seem I was not explicit enough in my instructions to students. I required that students provide two examples as they connect to the definition of resonance. Most students did provide accurate examples of resonance and did provide two examples, as seen on the Resonance Examples - Student Work. However, very few students connected the examples to the parts of the definition. They did not explicit state what was the periodic stimulus or the object that had the resulting large amplitude.

In the future, I will identify the three parts of the definition to which students must connect their example. They are:

1. the object/system experiencing the large amplitude

2. the small periodic stimulus

3. the frequency.

I have changed the resonance Power Point to reflect the changes needed to provide better instruction on what I expect from the students.

Checks for Understanding: Student Assessment of Resonance

# Resonance

Unit 5: Waves
Lesson 5 of 15

## Big Idea: Resonance is a vibration of large amplitude in a mechanical system caused by a small periodic stimulus of the same frequency as the natural frequency of the system.

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Standards:
Subject(s):
Waves, Science, interference (Waves), frequency (Waves), resonance, standing waves, physics, period (Waves), natural frequency
25 minutes

### Jameson Parker

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