True. I wonder if there was a way to study what are the hierarchies of concepts needed to explain higher-level concepts in any given field of study. That is not the same as "most often used" concepts, but really "most often assumed to be understood concepts".
Such an exposition might help students, if there was such an analysis of their field of study. What are the most useful concepts, including proofs and facts to know and understand to be able to learn more "higher level" concepts.
I don’t know about other fields of study, but such an exposition exists for math [1]. I heard about this book on the YouTube channel The Math Sorcerer [2].
Such an exposition might help students, if there was such an analysis of their field of study. What are the most useful concepts, including proofs and facts to know and understand to be able to learn more "higher level" concepts.