Ed note: This post has been updated from a 2013 post

A smooth-running classroom is about, among other things, organization, workflow, and classroom management.

Organization is about resources, priority, and consistency.

Workflow is about clarity, tools, and consistency.

And classroom management is about relationships, trust, and consistency.

Which brings us to the following collection of apps to help your classroom run more smoothly. From apps that keep time, do one calls, choose groups, promote desired behavior, keep notes, create to-do lists, record grades, or make calendar sharing social, there are 31 here that can help make your life as a teacher easier.

If we’ve missed any, feel free to suggest them in the comments below.

31 iPad Apps For A Smoother-Running Classroom