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The University of Texas System has released a set of free online courses intended to help high school students prepare for careers in STEM fields and the College Level Examination Program (CLEP) tests. The courses, which include introductory material in engineering, precalculus and sociology, among other subjects, are available on edX's massive open online course platform. Faculty members at the Arlington, Austin and Permian Basin campuses are behind the courses, and the university system may expand the lineup if they prove popular among students.