http://edtechdev.blogspot.com/2009/10/free-science-technology-engineering-and.html.

Doug Holton, an instructor in the Instructional Tech and Learning department at Utah State Uinversity, has compiled a useful post pointing to freely available books concerning Science, Technology, Engineering and Math (STEM) Education. These aren’t *textbooks* but instead free resources pointing to the future of education in these areas.

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