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3National Science Board. Preparing the next generation of STEM innovator: identifying and developing our nation's human capital [EB/OL]. http:llwww.nsf.gov/nsbl publication s/2010/nsb 1033.pdf, 2010-05 -05/2011-06-10. 被引量：1
4U.S. Department of Education,National Center for Education Statistics,Schools and Staffing Survey (SASS). Public School Teacher Data File [EB/OL].http://nces.ed.gov/surveys/sass/tables/ sass0708_009_t 1 n.asp, 2009-06/2011-07-10. 被引量：1
6IAbout the NSB [EB/OL]. http ://www.nsf.gov/nsb/about/, 2011-02-17/2011-07-19. 被引量：1
7Jack Hassard. Advancing STEM: Conflict between Standardization and Innovation [EB/OL]. http ://www.artofteachingscience.org/?p=2990,2010-09-16/2011-07-15. 被引量：1
8Assoeiation for Women in Science. Where Does My Funding Come From? Federal Agencies and the Future of STEM Innovators [EB/OL]. http://www.awis.org/displaycommon.cfm?an = 1 &suLbarticlenbr=-382 , 2010-10/2011-07-11. 被引量：1
