Microsoft has acquired Flipgrid, a social education app that utilizes short video clips to create collaborative lesson plans. The Minneapolis-based startup, which began life as Vidku, has had strong growth for an experience that has been alternatively described as Instagram and Snapchat for the classroom. Early last year, it reported an 800 percent year-over-year growth in teacher accounts. It’s certainly a play that makes sense in Microsoft’s portfolio, as the company looks to take back the education market currently being dominated by Google, thanks to its wildly popular Chromebook category.