Plain English Meaning
A four-step way of teaching: get ready, show the lesson, have the student try it, then check how well they did.
Full Definition
An organized, four-step method an instructor uses to guide a learner from not knowing a subject to performing it competently. The four steps are preparation, presentation, application, and assessment. Each step builds on the one before it, and skipping or shortchanging a step weakens the overall result.
Context Anchor
Seen in the Aviation Instructor’s Handbook when describing how an instructor should conduct a lesson, whether on the ground or in the aircraft.
Derivation
From 'teach' (to show or instruct) and 'process' (a series of steps leading to a result). Together it signals that teaching is not a single act but a sequence of steps.