| http://www.w3.org/ns/prov#value | - People who???ve endorsed the book include union leaders, including Dennis Van Roekel, president of the National Education Association; Lynn Nordgren, president of the Minneapolis Federation of Teachers, and Adam Urbanski, president of the Rochester, N.Y. Federation of Teachers, along with Stanford professor Linda Darling-Hammond and educator Deborah Meier, all of whom are skeptical about the chart
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