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The Power of Mathematical Visualization

Season 1
World-renowned math educator 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. Also featured are his fun do-it-yourself projects using poker chips, marbles, paper, and other props, designed to give you many eureka moments of mathematical insight.
IMDb 6.6201624 episodesTV-PG
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Episodes

  1. S1 E1 - The Power of a Mathematical Picture
    October 20, 2016
    34min
    TV-PG
    Professor Tanton reminisces about his childhood home, where the pattern on the ceiling tiles inspired his career in mathematics. He unlocks the mystery of those tiles, demonstrating the power of visual thinking. Then he shows how similar patterns hold the key to astounding feats of mental calculation.#Science & Mathematics
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  2. S1 E2 - Visualizing Negative Numbers
    October 20, 2016
    29min
    TV-PG
    Negative numbers are often confusing, especially negative parenthetical expressions in algebra problems. Discover a simple visual model that makes it easy to keep track of what's negative and what's not, allowing you to tackle long strings of negatives and positives--with parentheses galore.
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  3. S1 E3 - Visualizing Ratio Word Problems
    October 20, 2016
    29min
    TV-PG
    Word problems. Does that phrase strike fear into your heart? Relax with Professor Tanton's tips on cutting through the confusing details about groups and objects, particularly when ratios and proportions are involved. Your handy visual devices include blocks, paper strips, and poker chips.
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  4. S1 E4 - Visualizing Extraordinary Ways to Multiply
    October 20, 2016
    30min
    TV-PG
    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.
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  5. S1 E5 - Visualizing Area Formulas
    October 20, 2016
    30min
    TV-PG
    Never memorize an area formula again after you see these simple visual proofs for computing areas of rectangles, parallelograms, triangles, polygons in general, and circles. Then prove that for two polygons of the same area, you can dissect one into pieces that can be rearranged to form the other.
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  6. S1 E6 - The Power of Place Value
    October 20, 2016
    33min
    TV-PG
    Probe the computational miracle of place value--where a digit's position in a number determines its value. Use this powerful idea to create a dots-and-boxes machine capable of performing any arithmetical operation in any base system--including decimal, binary, ternary, and even fractional bases.
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  7. S1 E7 - Pushing Long Division to New Heights
    October 20, 2016
    29min
    TV-PG
    Put your dots-and-boxes machine to work solving long-division problems, making them easy while shedding light on the rationale behind the confusing long-division algorithm taught in school. Then watch how the machine quickly handles scary-looking division problems in polynomial algebra.
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  8. S1 E8 - Pushing Long Division to Infinity
    October 20, 2016
    30min
    TV-PG
    "If there is something in life you want, then just make it happen!" Following this advice, learn to solve polynomial division problems that have negative terms. Use your new strategy to explore infinite series and Mersenne primes. Then compute infinite sums with the visual approach.
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  9. S1 E9 - Visualizing Decimals
    October 20, 2016
    32min
    TV-PG
    Expand into the realm of decimals by probing the connection between decimals and fractions, focusing on decimals that repeat. Can they all be expressed as fractions? If so, is there a straightforward way to convert repeating decimals to fractions using the dots-and-boxes method? Of course there is!
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  10. S1 E10 - Pushing the Picture of Fractions
    October 20, 2016
    30min
    TV-PG
    Delve into irrational numbers--those that can't be expressed as the ratio of two whole numbers (i.e., as fractions) and therefore don't repeat. But how can we be sure they don't repeat? Prove that a famous irrational number, the square root of two, can't possibly be a fraction.
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  11. S1 E11 - Visualizing Mathematical Infinities
    October 20, 2016
    30min
    TV-PG
    Ponder a question posed by mathematician Georg Cantor: what makes two sets the same size? Start by matching the infinite counting numbers with other infinite sets, proving they're the same size. Then discover an infinite set that's infinitely larger than the counting numbers. In fact, find an infinite number of them!
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  12. S1 E12 - Surprise! The Fractions Take Up No Space
    October 20, 2016
    29min
    TV-PG
    Drawing on the bizarre conclusions from the previous lecture, reach even more peculiar results by mapping all of the fractions (i.e., rational numbers) onto the number line, discovering that they take up no space at all! And this is just the start of the weirdness.
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  13. S1 E13 - Visualizing Probability
    October 20, 2016
    31min
    TV-PG
    Probability problems can be confusing as you try to decide what to multiply and what to divide. But visual models come to the rescue, letting you solve a series of riddles involving coins, dice, medical tests, and the granddaddy of probability problems that was posed to French mathematician Blaise Pascal in the 17th century.
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  14. S1 E14 - Visualizing Combinatorics: Art of Counting
    October 20, 2016
    34min
    TV-PG
    Combinatorics deals with counting combinations of things. Discover that many such problems are really one problem: how many ways are there to arrange the letters in a word? Use this strategy and the factorial operation to make combinatorics questions a piece of cake.
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  15. S1 E15 - Visualizing Pascal's Triangle
    October 20, 2016
    32min
    TV-PG
    Keep playing with the approach from the previous lecture, applying it to algebra problems, counting paths in a grid, and Pascal’s triangle. Then explore some of the beautiful patterns in Pascal’s triangle, including its connection to the powers of eleven and the binomial theorem.
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  16. S1 E16 - Visualizing Random Movement, Orderly Effect
    October 20, 2016
    31min
    TV-PG
    Discover that Pascal's triangle encodes the behavior of random walks, which are randomly taken steps characteristic of the particles in diffusing gases and other random phenomena. Focus on the inevitability of returning to the starting point. Also consider how random walks are linked to the "gambler's ruin" theorem.
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  17. S1 E17 - Visualizing Orderly Movement, Random Effect
    October 20, 2016
    31min
    TV-PG
    Start with a simulation called Langton's ant, which follows simple rules that produce seemingly chaotic results. Then watch how repeated folds in a strip of paper lead to the famous dragon fractal. Also ask how many times you must fold a strip of paper for its width to equal the Earth-Moon distance.
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  18. S1 E18 - Visualizing the Fibonacci Numbers
    October 20, 2016
    34min
    TV-PG
    Learn how a rabbit-breeding question in the 13th century led to the celebrated Fibonacci numbers. Investigate the properties of this sequence by focusing on the single picture that explains it all. Then hear the world premiere of Professor Tanton's amazing Fibonacci theorem!
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  19. S1 E19 - The Visuals of Graphs
    October 20, 2016
    30min
    TV-PG
    Inspired by a question about the Fibonacci numbers, probe the power of graphs. First, experiment with scatter plots. Then see how plotting data is like graphing functions in algebra. Use graphs to prove the fixed-point theorem and answer the Fibonacci question that opened the lecture.
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  20. S1 E20 - Symmetry: Revitalizing Quadratics Graphing
    October 20, 2016
    31min
    TV-PG
    Throw away the quadratic formula you learned in algebra class. Instead, use the power of symmetry to graph quadratic functions with surprising ease. Try a succession of increasingly scary-looking quadratic problems. Then see something totally magical not to be found in textbooks.
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  21. S1 E21 - Symmetry: Revitalizing Quadratics Algebra
    October 20, 2016
    28min
    TV-PG
    Learn why quadratic equations have "quad" in their name, even though they don't involve anything to the 4th power. Then try increasingly challenging examples, finding the solutions by sketching a square. Finally, derive the quadratic formula, which you've been using all along without realizing it.
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  22. S1 E22 - Visualizing Balance Points in Statistics
    October 20, 2016
    30min
    TV-PG
    Venture into statistics to see how Archimedes' law of the lever lets you calculate data averages on a scatter plot. Also discover how to use the method of least squares to find the line of best fit on a graph.
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  23. S1 E23 - Visualizing Fixed Points
    October 20, 2016
    33min
    TV-PG
    One sheet of paper lying directly atop another has all its points aligned with the bottom sheet. But what if the top sheet is crumpled? Do any of its points still lie directly over the corresponding point on the bottom sheet? See a marvelous visual proof of this fixed-point theorem.
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  24. S1 E24 - Bringing Visual Mathematics Together
    October 20, 2016
    32min
    TV-PG
    By repeatedly folding a sheet of paper using a simple pattern, you bring together many of the ideas from previous lectures. Finish the course with a challenge question that reinterprets the folding exercise as a problem in sharing jelly beans. But don't panic! This is a test that practically takes itself!
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Details

More info

Audio languages
English
Subtitles
English [CC]
Producers
The Great Courses
Cast
James S. Tanton
Studio
The Great Courses
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