40K views · 550 reactions | Bouncyballs.org is a free classroom management/noise level meter tool. Once you enable your microphone (which works on all devices), the bouncing balls react to the noise level in class. The sensitivity of the microphone can be adjusted and there are a few different themes to use. I wouldn’t use it all the time, but it is a great little visual tool to use when you need to. | Mr Hunt from the Front | Facebook