Hansen: Students don't know how to measure; shocked prof creates tool to teach them how

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Posted: Saturday, January 18, 2014 12:00 am | Updated: 2:43 pm, Fri May 9, 2014.

Dave walks in carrying a serious gray briefcase, a titanium-looking briefcase, the kind of briefcase meant to carry smuggled Ukrainian jewels or the nuclear launch codes.

He stands inside an Omaha Mercy High School math classroom and clicks open the serious briefcase.

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