Definition
A teaching sequence in which the instructor presents the easiest, most basic elements of a subject first, then gradually builds up to material that is more involved or technically demanding. Each new step relies on the understanding the student has already gained from the previous one.
Plain English
Start with the easy stuff. Once that's solid, add the next layer. Keep going until the student can handle the hard material because they've built up to it one step at a time.
Context Anchor
Seen in flight instructor lesson planning, especially when deciding the order in which a student should learn a maneuver, procedure, or aviation concept.
Derivation
Simple comes from the Latin simplex, meaning single or plain. Complex comes from the Latin complecti, meaning to entwine or weave together. The phrase points to moving from one clear piece to several pieces working together.
Why Pilots Care
Prevents students from hitting confusion that leads to frustration or quitting training.
Intuition Check
Simple-to-complex does not mean avoiding hard material. It means reaching hard material by building up to it in a planned order.
Example Sentence 1
The instructor used a simple-to-complex approach, teaching straight-and-level flight before introducing turns, climbs, and descents.
Example Sentence 2
By following simple-to-complex order in the syllabus, the student built confidence on each step without feeling overwhelmed.