alec: They seem to have a different flare. More of a concise description without all of the underlying math.
maybe "Components 000.", "Components 101"
Way Wat=y back in the 70's, I did some writing of readability analysis. See:
https://www.readabilityformulas.com/free-readability-formula-tests.php
I really think the stuff would get good remarks. Think of it as Wikipedia with a lower target age.
I "could" see it branching with more age appropriate material.
Ask the user, how difficult the material was and either go forward or back in explanations or go on an entirely different track to learn background information.
I see something in the webpage, but not as it stands. Combine readability analysis and age appropriate education and a way to "zero in" on the level of understanding.
e.g.
The diode lets current flow in one direction.
The diode has a voltage drop.
The diode has leakage current.
Each one of those statements build on each other.
I think it MAY have merit if you could zero in on the level of understanding to the point that Wikipedia becomes understandable.
Use the readability score to select a page. Use age. Use math. Use questions.
Think of a way to explain a diode to a first grader to a college student and cover the needed materials you need along the way, but you can start anywhere and guided by your responses. A few responses create the starting point.