Clever:

Classroom is only one of Google’s many initiatives to get schools to use its services (over using Apple’s or Microsoft’s offerings, for example). The company has found a niche for its Chromebooks in schools, for example. With Google Play for Education, it also offers teachers and schools a way to easily buy Android apps and books and — even more importantly – distribute them to their students.

With Classroom, Google closes the loop. Students can use their Google laptops with Google’s apps, write their papers in Google Docs and then submit them through Classroom. It’s for teachers and parents to decide whether they want to make Google such a central hub in their students’ educations, but it’s clearly more convenient for everybody involved to stay within one ecosystem than to have to juggle two or more.