Enlightening history of hearing aid devices from the 19th century on.

Explore the science of sound and the human ear, and explain how this applies to the operation of cochlear implants for the deaf. Observe how structures can be "tuned" to respond to different frequencies.

This online biography of Helen Keller (1880-1968 CE) gives the highlights and accomplishments of her life.

A detailed site that recounts the story of Helen Keller and describes her birthplace at Ivy Green, in Tuscumbia, Alabama. Click on the links down the left-hand side to see maps, artifacts, and more to find games and activities for...

During this lesson plan, young scholars learn about the life of Helen Keller and how she communicated with others. Students have the opportunity to use sign language to communicate with others. Young scholars gain an appreciation for...