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Schenectady, NY .Dr. Martin Luther King, Jr. Magnet School of Math, Science, Technology, and Invention / urban public school.Three rulers measure three small objects in classroom..©Ellen B. Senisi
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Schenectady, NY .Dr. Martin Luther King, Jr. Magnet School of Math, Science, Technology, and Invention / urban public school.Three rulers measure three small objects in classroom..©Ellen B. Senisi
  • length
  • math
  • measure
  • measurement
  • measuring
  • size difference