In the past it was often assumed that disengaged students were easy to identify: they were the young people at the back of the class, the ones making their way to shop or special classes, or those lingering down the street well after the bell had rung. Data from What did you do in school today? suggest that disengagement is not – and may never have been – limited to small groups of students or as visible as we once thought. Over half of the students in our sample (n=32,300) – many of whom go to class each day, complete their work on time, and can demonstrate that they are meeting expected learning outcomes – are experiencing low levels of intellectual engagement.