One of the best (also most intimidating) teachers I ever had would do this when students asked questions - asked questions in response, gradually leading the student to discover, by publicly stating, what they understood and what they did not.

Everyone misunderstood him (Turkish guy teaching EMF in the US) and thought he was just trying to embarrass and shame them. Though to be fair, I DO think he had some serious resentment toward the sense of entitlement many students approach their education with, and I share it.

His attitude left a bit to be desired, but if you were willing to humble yourself and truly engage with him when you asked a question (AKA not just retreat when he starts probing) - he just had this magical ability to ask questions until you revealed (seemingly to yourself) precisely what you had missed. Never really seen anything quite like it, he was distinct. And he respected and became warm with the students who would humble themselves and publicly try, too, which came as a shock given his permanently grumpy, disappointed demeanor. Plus he went some years where no students achieved that breakthrough, so his reputation never included notes about such.

(Uhh, my bad, just went down memory lane and only some of that has to do with what you said lmao)