PLN: mind map

Sources:
Robelen, Erik w. (2011). New STEM schools target underrepresented groups. Retrieved from: http://www.edweek.org/ew/articles/2011/09/14/03stem_ep.h31.html on September 18, 2011.
National Academy of Engineering. (2010). Grand Challenges for Engineering. Retrieved from: http://www.engineeringchallenges.org/ on September 18, 2011.