The Power of Mathematical Visualization | Visualizing Ways to Multiply | the Great Courses

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Consider the oddity of the long-multiplication algorithm most of us learned in school. Discover a completely new way to multiply that is graphical—and just as strange! Then analyze how these two systems work. Finally, solve the mystery of why negative times negative is always positive.

00:00 A Quirky Way to Multiply: The Line Method
06:44 The Standard Multiplication Method Is Equally Weird
09:42 How Multiplication Relates to Geometry
10:58 Is Multiplication Commutative?
13:00 Comparing Rectangle Method to Line Method
16:47 Why Does Multiplying Two Negatives Get a Positive?
21:50 A Fun Application of Multiplying Numbers
27:23 Using a Rectangle to Compute Algebra Problem

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Видео The Power of Mathematical Visualization | Visualizing Ways to Multiply | the Great Courses канала Wondrium