Silent Light. Where have you been all my life? In the past, I have used a generic decibel meter on my iPad to help show my students the noise level in the classroom. But, I just discovered this app handmade for teachers. It lets you set the noise level. It then allows you to choose the time increment expectations. Every time your class meets that expectation, they get a point. My class earns points for parties, so this was a big hit. Also, if you set your iPad to landscape viewing, you can set the learning target. I have used this app over the last week, and it has been a miracle for keeping a large class of 5th graders on target for learning and for noise. And at only $0.99, it is a steal.
**UPDATE: The app price has risen to $3.99. For me, the price is still worth it--but I wanted to be sure everyone knows about the increase!