@article{315957,
      author = {Duschl, Richard A. and Schweingruber, Heidi A. and Shouse,  Andrew W.},
      url = {http://library.usi.edu/record/315957},
      title = {Taking science to school : learning and teaching science  in grades K-8 /},
      publisher = {National Academies Press,},
      recid = {315957},
      pages = {xvi, 387 p. ;},
      address = {Washington, D.C. :},
      year = {2007},
}