A simple and effective app that measures the volume within your too and tells you if you are too noisy! A good visualisation tool, in particular, for Primary school students.
You can adjust the sensitivity of the app itself, to compensate for larger/smaller rooms.
The app can be run directly on the ipad or displayed on the classroom interactive whiteboard.
The app displayed here is the free app. There is a Pro app available also. What's the difference?