I can relate to this very much as I've learned and relearned a lot of the basics by tutoring other kids and now my own.
However, there are things that are more teachable than others. Math, science and basic school curriculums are teachable but a lot of management and marketing is not. Over the years I've seen so much damage done to my company through consultants that teach things that should never have seen the light of day. Perhaps some of them are poor teachers but I think the bigger problem is the assumptions that what worked in one situation will work in most others.
However, there are things that are more teachable than others. Math, science and basic school curriculums are teachable but a lot of management and marketing is not. Over the years I've seen so much damage done to my company through consultants that teach things that should never have seen the light of day. Perhaps some of them are poor teachers but I think the bigger problem is the assumptions that what worked in one situation will work in most others.