po-shen loh

po-shen loh is a social entrepreneur, working across the full spectrum of mathematics and education, all around the world. he is the founder of the free personalized learning platform expii.com, a social enterprise supported by his series of online math courses that reinvent the middle school math curriculum with a focus on creative thinking. he is also a math professor at carnegie mellon university and the national coach of the usa international mathematical olympiad team.

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