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ERIC Number: EJ926917
Record Type: Journal
Publication Date: 2011-Apr
Pages: 3
Abstractor: As Provided
Reference Count: 8
ISSN: ISSN-0031-921X
Inexpensive Instruments for a Sound Unit
Brazzle, Bob
Physics Teacher, v49 n4 p228-230 Apr 2011
My unit on sound and waves is embedded within a long-term project in which my high school students construct a musical instrument out of common materials. The unit culminates with a performance assessment: students play the first four measures of "Somewhere Over the Rainbow"--chosen because of the octave interval of the first two notes--in the key of C, and write a short paper describing the theory underlying their instrument. My students have done this project for the past three years, and it continues to evolve. This year I added new instructional materials that I developed using a freeware program called Audacity. This software is very intuitive, and my students used it to develop their musical instruments. In this paper I will describe some of the inexpensive instructional materials in my sound unit, and how they fit with my learning goals.
American Association of Physics Teachers. One Physics Ellipse, College Park, MD 20740. Tel: 301-209-3300; Fax: 301-209-0845; e-mail:; Web site:
Publication Type: Journal Articles; Reports - Descriptive
Education Level: High Schools; Secondary Education
Audience: Teachers
Language: English
Sponsor: N/A
Authoring Institution: N/A