Teach Starter - How neat is this...monitor classroom noise level with virtual bouncy balls! It uses the microphone on your laptop, you can 'see' the noise level and so can your students!!
Topmarks on Twitter: "New blog post: Bouncy Balls is a free noise level meter to monitor and manage classroom noise or visualise music in a fun way. Full details here: https://t.co/Tbqh0Xg5bG" /
![Free Technology for Teachers: Two Browser-based Noise Meters That Show Students How Loudly They Speak Free Technology for Teachers: Two Browser-based Noise Meters That Show Students How Loudly They Speak](https://4.bp.blogspot.com/-y9zGqZtEBFU/U0gWM4VzY0I/AAAAAAAAlr8/qmCr8UOO1GY/s1600/bouncy.png)