REFERENCES
- Colley , K . 2008 . Project-based science instruction: A primer . Science Teacher , 75 ( 8 ) : 23 – 28 .
- Krajcik , J. and Czerniak , C. M. 2007 . Teaching science to children: A project-based science approach , 3rd ed. , Mahwah , NJ : Lawrence Erlbaum .
- National Research Council . 1996 . National Science Education Standards. , Washington , DC : National Academies Press .
- National Research Council . 2008 . What you need to know about energy , Washington , DC : National Academies . http://www.nap.edu/catalog/12204.html (accessed July 7, 2009)
- Wiggins , G. and McTighe , T. 2003 . Understanding by design Exp. , 2nd ed. Alexandria , VA Association for Supervision and Curriculum Development