Pre-prescribing: Creating a zone of proximal development where medical students can safely fail.

This research shows how a theoretically informed intervention can create conditions to enhance learning. It encourages educators to identify aspects of routine practice that could be delegated, or co-performed, by learners. With appropriate support, educators can create 'safe-fails' which allow learners to participate safely in authentic, risky, and indeterminate situations they will be expected to navigate as newly qualified clinicians.