Learners use their teeth for more than just eating. The activity shows class members how to send sound through their teeth by using an electric motor connected to a radio to generate vibrations. Biting on the motor transfers the vibrations through teeth and bones to the cochlea.

Concepts

sound vibrations, sound waves, electric motors, technology resources

Show More Show Less

Instructional Ideas

• Incorporate a lesson on how the ear works

Classroom Considerations

• Confirm the activity works with the radio you are using
• Requires a wire with an audio jack and alligator clips

Pros

• Provides an image of the ear to visually see how the ear works 
• Contains methods to check for hearing loss

Cons

• Placing a small electrical motor in your mouth, even wrapped in plastic, might not be the best practice