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A possible explanation for math failures in Montgomery County Public Schools

Smithsonian National Air and Space Museum Chief of Science, Technology, Engineering and Math Engagement Steven Williams (L) speaks with guests during a preview of the 'Spirit and Opportunity: 10 Years Roving Across Mars' exhibition.
Smithsonian National Air and Space Museum Chief of Science, Technology, Engineering and Math Engagement Steven Williams (L) speaks with guests during a preview of the 'Spirit and Opportunity: 10 Years Roving Across Mars' exhibition.
Photo by Chip Somodevilla/Getty Images
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