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When teaching sound and related concepts to students with visual impairment, it is important to tie the concepts to real-life. This activity ties the concepts of wavelength, frequency (in Hertz), and pitch together using an on-line hearing test. It should be completed after these concepts have been introduced.
This activity also incorporates technology in a manner that interests the students and is entertaining.
A simple tuning fork is employed to help students understand more clearly what causes sound and the manner in which sound moves. The vibration of air causes sound to travel from the point of its inception to our ears. This activity allows students to feel vibration using a tuning fork in order to better conceptualize the movement of air around the tuning fork.