Bob Moore writes:

Sure as hell does...try teaching a student to read before he
learns the alphabet. He may memorize the book, but still does
not know how to read.

Public schools did that for decades in the US. Of course, they
produced several generations of illiterates in consequence.

However, in this case, it's not clear that one lesson is a
prerequisite for another. Must one learn to fly patterns before
learning to land? (Or vice versa?)

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