Reflection: Developing a Conceptual Understanding Telephone Time - Section 5: Elaborate


The students discovered that the tighter the string the louder the sound. They also found out that the styrofoam cups transfer sound better than the plastic cups: students experimenting. I had no idea they would discover all this in the lesson. 

This was really their first lesson where the students were allowed to experiment with a given set of materials. I was so nervous. I had visions of them acting silly or tying each other up with the yarn. Basically, I felt with freedom to explore they might misuse the materials.  But, I was completely shocked when they just started experimenting. Some groups used plastic cups, some used styrofoam, and others used different amounts of the string. 

With more time exploring they kept asking questions like, "Will it be louder if I use two strings?" I said, "I don't know. Let's try it." Then the students kept on learning. 

I strategically prepared the class for this release to experiment and plan without my control.  First, I planned some experiments for them. Then we planned some experiments together. After about five experiments they were able to experiment on their own successfully.

  Developing a Conceptual Understanding: Student Investigations
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Telephone Time

Unit 6: Sound Travel
Lesson 7 of 12

Objective: SWBAT create a design to move sound.

Big Idea: Engage in a fun experiment where students discover that sound travels through objects.

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1 teacher likes this lesson
Science, Sound, noise, glass, string
  60 minutes
gold coated telephone batista itt habana
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