@article{414161,
      author = {Duschl, Richard A. and Schweingruber, Heidi A. and Shouse,  Andrew W.},
      url = {http://library.usi.edu/record/414161},
      title = {Taking science to school learning and teaching science in  grades K-8 / [electronic resource] :},
      publisher = {National Academies Press,},
      recid = {414161},
      pages = {xvi, 387 p.},
      address = {Washington, DC :},
      year = {2007},
}