36 lectures on first-year algebra. Topics include order of operations, slope of a line, factoring trinomials, quadratic equations, etc
12 episodes. "One key to expanding your math potential—whether you’re a CEO or a high school student—lies in the power to perform mental calculations. Solving basic math problems in your head offers lifelong benefits including a competitive edge at work, a more active and sharper mind, and improved standardized test scores. Discover the skills, tips, and tricks for tapping into your hidden math skills."
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36 lectures on geometry. Topics include the pythagorean theorem, proofs, equations of a circle, etc
24 episodes. "Dr. James Tanton shows you how to think visually in mathematics, solving problems in arithmetic, algebra, geometry, probability, and other fields with the help of imaginative graphics that he designed."
