Science/Strand IV/Content Standard 4/High School/Benchmark 1
Benchmark Question: How can we describe sound?
Focus Question: How are the properties of sound
waves related to the characteristics of sound?
Students will listen to a
musician (or musicians) produce sounds on various instruments.
The teacher will use a ruler
to demonstrate variations in frequency (pitch). Placing a ruler flat on a
desk so a portion of the ruler extends past the edge of the desktop, the
teacher will use a finger to depress and release the end of the ruler while
students listen for the effect. The teacher then will increase and/or
decrease the amount by which the ruler extends past the edge of the desktop
and repeat the demonstration.
After a teacher-led class
discussion, students will explain the characteristics of sound waves:
frequency, amplitude, velocity, pitch, and volume. Students then will
construct a musical instrument in small groups or individually. Each
instrument will be demonstrated and students will discuss/share
characteristics of sound waves.