In my early years as a teacher of mathematics, the history of mathematics was seldom mentioned in the classroom. It was viewed as an unworthy topic that would detract from the presentation of mathematics itself. This opinion has dramatically changed over the years, and the history of mathematics is now embraced and used by many mathematicians in their teaching and even research. We might choose to ask a related question. How much philosophy is necessary or helpful for a mathematics teacher to know, and to use in his or her teaching? We see a growing interest in the philosophy of mathematics in our postmodern age, as evidenced by the paper sessions on the philosophy of mathematics at recent join meetings, and by the number of books with this theme written during the past few decades.
Brabenec, Robert L., "Thinking Philosophically about Mathematics" (2011). ACMS Conference Proceedings 2011. 9.
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