Back at Google I/O 2013, Google Play for Education was announced. This is more or less a curated app market inside of Google Play that offers apps designed specifically for the classroom setting, which works well for both developers and teachers. As of today, Google Play for Education is officially open.
If you're a developer, getting your app into GPfE is actually quite simple – just mark your app for inclusion in the Developer Console. From there, it will be reviewed for approval and assigned an appropriate grade level according to the GPfE guidelines. Once approved, you're good to go.
Ultimately, this will allow educational apps to be discovered by schools and installed on students' tablets across the entire campus with a single click – that's powerful. Not only for the teachers (because, c'mon, anything that makes a teachers life easier is a good thing), but also for developers.
For more information on to get started with Google Play for Education, head here.