The Classrooms view compares your classes against each other, so you can see which ones are using Mindjoy and which have gone quiet.
Opening it
Click Insights in the sidebar. You need to be an organisation admin to see it.
Click Classrooms.
What each column means
Students. How many are in the class.
Questions Answered. Volume of work done.
Feedback Given. How much marking and feedback has come back.
Current Avg. The class average.
Highest Activity and Lowest Activity at the top surface the extremes without you having to sort.
Everything on these pages respects the date range in the top right, which defaults to the last three months. Change it to compare a term against the one before.