The appointment slots feature in Google Calendar can deliver both of these things. Wouldn’t it be great if you could get students to schedule a time with your first? Better yet, one that you had predetermined to be OK? Whether it be students queuing in the hallway to ask a question before an assessment, or rushing in while you’re mid-way through your lunch to get work signed-off, the timing can often be inconvenient to all involved. If you often have students visiting your office outside of class time, you’ve probably noticed things can get a bit hectic.