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All about Rigor (Or is it Rigor-mortis?)

Recently President (of NCTM) Trena Wilkerson wrote: Consider these three “Rs” of mathematics: students should engage in rigorous and challenging mathematics that is relevant to their lives and is responsive to their background experiences, cultures, interests, and knowledge.”  Math educators seem to love the term rigor, but for 9th and 10th-grade students it scares the …

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