Plain English Meaning
The instructor knows what they want to cover and has notes to guide them, but chooses the actual words as they go. It sits between reading a script and winging it.
Full Definition
A method of lecture delivery in which the instructor speaks from a carefully prepared outline or notes, rather than from a fully written-out script or from memory. The structure and key points are planned in advance, but the exact wording is composed on the spot as the instructor speaks.
Context Anchor
Seen in flight instructor training when discussing ways an instructor can deliver a lesson clearly and flexibly.
Derivation
From the Latin 'ex tempore' meaning 'out of the time' or 'on the spur of the moment.' In an aviation instructional setting, it captures the idea that while the lesson is planned, the wording is produced in the moment of teaching.
Why Pilots Care
For flight and ground instructors, this is the recommended delivery method for most lessons. It keeps the talk organized through the outline while sounding natural, allowing the instructor to read the room, pace, and respond to student reactions.