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Robert Borgersen
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Christian University Math Instructor married to his best friend
Christian University Math Instructor married to his best friend

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Passive vs active optimisim

"Never confuse optimism and hope. Never confuse the two. Optimism is the belief that things are going to get better. Hope is the belief that if we work hard enough we can make things better. It needs no courage whatsoever, only a certain kind of naivite, to be an optimist. It needs a great deal of courage to have hope." -- Rabbi Jonathan Sacks

I don't agree with Rabbi Sacks' definition of hope, but if you replace "optimism" and "hope" with "passive optimism" and "active optimism" I think he has a good point.

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This is amazing!!!

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David Bressoud's 2012 talk on the MAA Calculus Study.  Some important points are (a) drop in confidence and (b) the bias against women in persistence, attitudes, and beliefs, which can be fixed using progressive (i.e. IBL) teaching.

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StoreDot, a startup based in Tel Aviv, has developed a prototype that is able to charge a smartphone battery from 0%-100% in 30 seconds: http://on.mash.to/1mWbH7Q
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