School Crossing: The Intersection of Education and Society

Provocative commentary on competing educational stakeholders and how their entrenched interests collide to obstruct the goal of world-class education in America. Includes teacher training and quality, curriculum design, teaching resources, Japanese education models, book reviews, practical teaching tips, more.

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Sunday, April 24, 2016

Missing Key to Understanding Place Value

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I write a lot about place value. Place value (along with zero) may arguably be the most important math concept because it underlies every s...
Saturday, March 12, 2016

Zero is a Real Number

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Zero is a real number. Could such a headline possibly be click bait? If so, it is pretty lame. Of course everyone knows zero belongs to...
Tuesday, February 2, 2016

Is Division Repeated Addition?

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One of Stanford mathematician Keith Devlin's pet peeves is the common “division is repeated addition” meme . He despises it so much h...
Wednesday, December 30, 2015

Nobody Understands Place Value

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Parents often ask me to help their children with math homework. My reply is always the same. I am not interested in “helping” with homewor...
Sunday, November 15, 2015

Rote Does A Lot of People A Lot of Good

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Recently I read a forum comment somewhere to the effect that “rote does not do anyone much good.” Ironically, this comment was part of a com...
Tuesday, August 25, 2015

Nothing Wrong with Rote

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A popular view among educators is that rote learning is bad, bad, bad. Point out how well Asians do in international tests compared to Amer...
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Saturday, July 18, 2015

Slaying the Calculus Dragon

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No doubt about it. Many students consider calculus scary, right up there with monsters under the bed. Calculus is the Minotaur or St Georg...
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