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Showing posts with label number sense. Show all posts
Showing posts with label number sense. Show all posts
Tuesday, March 21, 2017

Most American Math Teachers Cannot Teach Math

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...because they studied non-math in school, not math. (And most of the rest of us have the same problem.) https://schoolcrossing.blogsp...
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...
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...
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...
Saturday, February 14, 2015

How Should Students Show Their Math Work?

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In this post, I am pinging off Maria Miller of Math Mammoth . I recommend Math Mammoth for its concept-based lesson development and worksh...
Saturday, December 8, 2012

Do Not Use Baby Talk to Teach Math

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Number sense is like a mighty oak rooted in the subconscious. Beginning in infancy, it is little more than a humble acorn. Misconceptions ar...
Tuesday, November 6, 2012

Tricks and Shortcuts vs. Mathematics

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The issue is not whether algebra should be taught in the eighth grade or later. The issue is not whether local schools should be able to m...
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Thursday, December 3, 2009

Algebra in 2nd Grade?

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In February, 2009 a teacher in Montana made EdWeek headlines because she was teaching algebra to second graders and had been doing so for fi...
Sunday, November 11, 2007

The Vital Place of Place Value

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Perhaps one of the most important foundational concepts in mathematics is place value. As the Massachusetts Department of Education rightly ...
Friday, November 9, 2007

Are You Good at Non-Math?

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One of the most persistent issues in math education has been the reliance on non-mathematical explanations of mathematical principles. Fo...