Google Calendar is free for schools. You can easily share your calendar with your entire organization or select people. Scheduling has never been easier when you overlay calendars to find a time that works with everyone’s schedules.
Schedule school events, send out invitations and let Google Calendar handle the RSVPs for you. Students can easily find time to meet up for school projects by utilizing shared calendars.
Calendar integrates with other Google Apps, like Gmail, Hangouts and Drive. Reply to invites right from your inbox without visiting Calendar. Include a Hangout link in calendar events and join the Hangout from the web or your phone. Attach a Drive file to an event so everyone has the agenda, or knows what files to review.
Google.com,. (2014). Google for Education . Retrieved 22 October 2014, from https://www.google.com/edu/training/tools/calendar/level1.html