> (100-level Discrete Maths has very few prerequisites; you could theoretically learn it in elementary school, though practically not, for mental-development re

> (100-level Discrete Maths has very few prerequisites; you could theoretically learn it in elementary school, though practically not, for mental-development reasons.) Typical introductory discrete math textbooks list high school precalculus as a prerequisite and recommend an introductory calculus course as very helpful additional background. You would have to teach something significantly different to someone with the background of a typical middle school / early high school student, because they are lacking quite a bit of the expected background concepts, terminology, and notation. These subjects could certainly be taught to elementary school students, but slowly and with a lot of build-up and practice, over the course of years. The limiting factor is not primarily “mental development” (as in, some inherent change of brain wiring that inevitably happens with age) but rather substantial amounts of practice, prior exposure to related ideas, time spent digesting them, stamina/attention span/confidence at solving technical problems, etc.