It is not a 21st century skill at all. It may be the oldest skill in the curriculum: over-theorised for decades, promised to every classroom and never made usable. It’s a stocktake, and a road-tested checklist for the era in which the machine produces and the teacher must notice.
The oldest skill in the curriculum
Critical thinking is not a 21st century skill. It may be the oldest skill in the curriculum. It was prized in the Athenian agora, formalised in Indian logic and Arab optics and for most of history it belonged to the educated few . . .
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