chapter  1
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9- A Tangent Prior To The Rise (and Run)

Before commencing with the slow theoretical climb to come, I will make one short digression-partly to motivate the ascent, and partly to frame the view from atop. On a past project, I had an opportunity to interview a handful of mathematics educators and mathematicians. I asked each what it meant to understand a mathematical concept in some “deep” manner-that is, what would it mean for them to have a “deep understanding?”