In December, 2009, the National Science Foundation sponsored a workshop on the future of STEM education. See http://www.mathcurriculumcenter.org/conferences/stem/index.php. Pay special attention to the "Reflections Papers" article by Sherry Hsi.
Note: In attempting to retrieve this paper on 9/17/2012 I was led to http://www.lawrencehallofscience.org/staff/committees/allhalllearning/2010/BlueSky/Reflection_STEM-BlueSky.pdf. Here is a paragraph from the 2009 paper: