Insights on an assignment show you how a class handled it: what they got right, and where the same mistake keeps appearing.
Opening them
Open the classroom, go to Assignments, click the assignment and then the lesson. The activity page has three tabs: Students, Blocks and Insights.
The Insights tab surfaces the misconceptions worth reteaching, rather than making you read thirty scripts to find them.
Usage across the school
For how much Mindjoy is being used rather than how one class did, use Insights in the sidebar. See Organisation Level Insights.