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The new learning center, pilot program, at Roper Middle School, Washington, D.C., in the 8th grade science class, in March 1996. (Photo by Laura Patterson/CQ Roll Call via Getty Images)

The new learning center, pilot program, at Roper Middle School, Washington, D.C., in the 8th grade science class, in March 1996. (Photo by Laura Patterson/CQ Roll Call via Getty Images)

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