$ GROUPINATOR takes the guesswork out of forming, sorting, and tracking student groups. Teachers can upload a class roster via text file and sort students into groups with between 1 and 20 members. Brought you by the same folks who developed Common Core Look For's, Groupinator falls into a class of efficiency tools that remove the grunt work from everyday activities without infringing on teachers' individual pedagogy or instructional preferences. Available on iPad for $0.99.