The EEF's evidence on feedback is striking: well-designed feedback is one of the highest-impact, lowest-cost things teachers can do — but most feedback in practice has near-zero impact on pupil progress. The problem is rarely that teachers care too little; it's that feedback is not designed to be acted on.
Effective feedback has three properties: it is specific (it identifies a precise improvement, not just 'good work'); it is timely (delivered close to the work, not three weeks later when it's irrelevant); and it is actionable (the pupil can do something concrete with it in the next few minutes).
