The Shift Schedules Class Scheduler-200 can be used to create student classroom schedules for up to 200 students and 20 teachers in 20 classrooms and 20 time periods each day for a week. Individual student and teacher schedules as well as a class roster are created by the spreadsheet and automatically sent by e-mail to students, teachers and school administrators. The Excel spreadsheets are available in sizes to schedule 200, 400 & 600 students.