What Did You Say? How Hearing Works
After listening to your lecture while wearing earplugs, give high schoolers a pop quiz. Have them remove earplugs, grade the quizzes, and then discuss how different life would be with limited hearing ability. Pupils review how waves work, and then participate in a jigsaw to teach each other how hearing occurs. This 18-page resource does not include the overhead transparency mentioned, but it provides a tremendous amount of material for studying hearing with your health, biology, or physics classes.