Calmness Counter & Bouncy Balls are two classroom noise monitors websites designed to help students learn to recognize the appropriate volume for conversations while working in the classroom.
Calmness Counter displays a meter whose needle move in response to the sound in your classroom.
Bouncy Balls displays a colorful set of bouncing balls to show your students the volume of the voice in your classroom. The higher the sound level goes, the higher the balls on the screen bounce.
References:
Bouncy Balls
Calmness Counter
