[theorique]

The lesson is "quantifying the cost of getting killed".

The method by which that lesson is conveyed to the student is the Socratic method.

The point is that the Socratic method of asking leading questions and building agreement at each stage was more effective in getting the point across than "do you understand X? OK, good."

The student constructs the knowledge him/herself and internalizes it better than otherwise.

[SilasX]

Yes, it's better than asking if they understand the assertion of the point, but the parent was giving a misleading comparison to something that stripped out both the Socratic questions and the quantification of the cost.

[alexpotato]

This is an excellent explanation of what I was describing in the original comment.