Teaching and Learning Foster Each Other

CORE DEFINITION

The idea holds that explaining material to someone else exposes the gaps in one's own understanding, because the parts that were merely recognized must now be produced and connected. It is the classical ancestor of the Feynman technique and is supported by the generation effect, in which material produced by the learner is retained better than material read. The core claim is that output rather than input drives consolidation, so a rotation of internal teaching sessions is the cheapest available way to raise a team's capability. The qualification is that teaching without reflection produces performance rather than learning.