OK fine, I'll wade into this morass. Unpopular take: Everyone can learn to code. But not all "coding" is worthwhile for "everyone" to learn. Just like archery, welding, or setting your own broken arm bone.
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Seems correct, especially since you don't code a whiteboard, you code a computer. The whiteboard might have some usefulness to express certain concepts, but coding certainly seems like its best learnt by doing, at the computer.
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Coding on paper or a whiteboard reread requires the user to learn to simulate the state machine / computer in their head. I found it frustrating in HS and in college but now appreciate the exercise.
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I don't think it can be avoided. I learned to code by starting with simple runtimes (LOGO, BASIC). But once you get beyond that to procedural abstraction, collections of refs, loop variables, etc. - then you need to get a whiteboard and really walk folks thru the runtime model.
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I didn't empathize with the lack of ability to model arbitrary systems until I tried explain for-loop (in Python) to somebody in a car. They *could not* understand how or why the loop var changed values.
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