when I taught in college, it was at a time when you had those transparencies that you could write on, or you could pre-prepare them, and some professors would just slap down a fully prepared transparency and there were all the notes, and they would speak to the notes. RD: As opposed to building it up. NDT: As opposed to building it up. And I’d say, ‘No! If you do that, they’ll just copy!’ Whereas if you draw the first part of the diagram – here’s an axis of temperature, and here’s time, and here’s – and then you assemble the ideas together and you get a far deeper understanding of what’s going
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