The concept is simply this: that by identifying those students who, year after year, show up to school already at or above grade level – students who would ordinarily be doomed to relearning what they already know – we can provide them with suitable interventions so that they can actually learn something. Holding schools accountable for adding value – or teaching a year’s worth of material – can demonstrate the shortcomings of limited differentiation and encourage teachers and schools to identify and serve high ability students – rather than allowing them to languish and, in some cases, tune out to learning completely.



