How Hearing Aids Work
Free to teach as-is — the teacher guide, student handout, and slides are included.
Free — we'll email you an access link. Google Docs format.
Objective
I can explain how a hearing aid processes sound to help people hear.
Part 1 of 3
Key concepts
3 concepts
- 1
A hearing aid is an electronic device that improves hearing by making sounds louder and clearer, and it has three main parts: a microphone, an amplifier, and a receiver.
- 2
The microphone in a hearing aid picks up sound waves from the environment and converts them into electrical signals.
- 3
The amplifier increases the strength of the electrical signals and can filter out background noise, while the receiver converts these signals back into amplified sound waves for the ear.
Part 2 of 3
Practice
3 questions
What is the initial role of the microphone in a hearing aid when it encounters sound?
Beyond simply increasing the strength of electrical signals, how does a modern hearing aid's amplifier enhance a user's hearing experience?
Part 3 of 3
Exit ticket
Quick comprehension check
“Explain how a hearing aid processes sound from the environment to help a person hear, detailing the function of its three main parts.”
Sample answer included in the free materials
Get the materials
Teacher guide, student handout, and slides — free, in Google Docs format
Teacher Guide
Complete lesson plan with answer keys and alternate activities
Student Handout
Printable worksheet
Slides
Ready to present
We'll ask for your email to send your access link — nothing else.
Teaching a group at a different level?
Where are your students right now? We'll rebuild this lesson to match — including the teacher guide, student handout, and slides, saved to your Google Drive.
Adapt This Lesson