Today we finished our guitars. As part of the project students were expected to be able to demonstrate how to change the pitch and volume of their instrument.
Pitch is how HIGH or LOW a sound is. Volume is how LOUD or QUIET a sound is. Students noticed that when they strum their guitar strings quickly the volume is loud, when they strum the strings slowly the volume is quiet. When they tighten the strings the pitch is high and when they loosen the strings the pitch is low.
Here is a group picture of all of the guitars as well as a Google slides presentation of individual projects.