Lesson Plan Originally Created By:
Dave Susuras
Voices in your Head (a lesson on how speakers work)
Part of Unit: Force, Work, Rate, Power, Energy, and Resistance
Lesson Plan Overview / Details
In this lesson students will build a speaker coil. When they hold the coil in their teeth and plug it into a sound source, they will hear the music in their head through bone conduction. Students will then draw a diagram of a speaker with an explaination to demonstrate their new found knowledge.
Lesson Time 2 class periods
- Tooth Tunes Video
- 5 Minutes
- Lesson Instructions
- 10 Minutes
- Build Time
- 50 Minutes
- Explanations
- 20 Minutes
- Class discussion
- 10 Minutes
Standards
California Career and Technical Education Standards
- ED.D.D11.3 Apply the concepts of engineering technology to the tools, equipment, projects, ...
- ED.D.D4.4 Know how energy is transferred; know the effects of resistance in mechanical, el...
- ED.FS.11.0 Demonstration and Application
California Academic Content Standards (Reinforced)
- ELA.9-10.R.CAGT.2.6 Demonstrate use of sophisticated learning tools by following technical direction...
2
Objectives and Goals
- Students will build a bone conduction speaker
- Students will demonstrate their knowledge of speakers by creating a labeled drawing and explaining how a speaker works.
Activities in this Lesson
- Tooth tunes video - Hooks / Set
Students watch the Youtube video "Tooth Tunes"
- Tooth Tunes Video [ Watch Video ] [ Download Original Video ] A video showing a toothbrush that uses bone conduction.
- Bone Conduction Speaker Instructions - Lecture
The instructor outlines the steps for building a Bone Conduction Speaker
- Students Build Speaker - Lab / Shop
Students follow the instructions and build the speaker.
- Bone Conduction Speaker pictures [ Download ] Pictures of the Speaker Construction
- Class discussion - Closure
After the students the instructor pulls examples from students explanations to build a correct model of how a speaker works.
Assessment
- Assessment Types:
- Think Pair Share
Students draw a diagram and add an explanation of how a speaker works. The class is broken up into Think pair Share groups to discuss their diagrams. Each team then shares with the class their explanations and drawings.
