Some students will insist to start concrete before abstraction because it is easier. They are inviting you to also be wrong like they are.
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@dibblego How is a concrete example of an abstraction “wrong”?
@sritchie The claim that it is easier is wrong. It definitely isn't, even (especially) in cases where there is insistence otherwise.
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@dibblego Teaching Option and Try together, and pointing out similarities, made teaching Monads MUCH easier for me than starting w/ abstract -
@sritchie I disagree that is what made it easier. There were more subtle points that made it easier. - Show replies
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@dibblego How to even introduce an abstraction without motivating it? -
@sritchie I cannot think of a more useless motivation than concrete examples. So I don't know how to answer this question. - Show replies
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