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Algebra 1: The Complete Course - Lesson 28: Systems of Inequalities (DVD, 2008)
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Departing from traditional methods of teaching math, Dr. Monica Neagoy uses her extensive knowledge of history and mythology combined with concrete examples and illustrations to introduce algebraic concepts and make learning fun. In this volume, she teaches the meaning of an inequality versus equation, the fallacy of "one-way mathematics," solving an inequality by symbolic manipulation, and generalizing the meaning of a linear equality in two unknown.
