

The Power of Mathematical Visualization
ניסיון בחינם של The Great Courses Signature Collection או לקנייה
נדרשת חברות Prime
כפוף לתנאים
פרקים
עונה 1 פרק 1 – The Power of a Mathematical Picture
20 באוקטובר 201634 דקותProfessor 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.ניסיון בחינם של The Great Courses Signature Collection או לקנייהעונה 1 פרק 2 – Visualizing Negative Numbers
20 באוקטובר 201629 דקותNegative 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.ניסיון בחינם של The Great Courses Signature Collection או לקנייהעונה 1 פרק 3 – Visualizing Ratio Word Problems
20 באוקטובר 201629 דקותWord 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.ניסיון בחינם של The Great Courses Signature Collection או לקנייהעונה 1 פרק 4 – Visualizing Extraordinary Ways to Multiply
20 באוקטובר 201630 דקותConsider 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.ניסיון בחינם של The Great Courses Signature Collection או לקנייהעונה 1 פרק 5 – Visualizing Area Formulas
20 באוקטובר 201630 דקותNever 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.ניסיון בחינם של The Great Courses Signature Collection או לקנייהעונה 1 פרק 6 – The Power of Place Value
20 באוקטובר 201633 דקותProbe 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.ניסיון בחינם של The Great Courses Signature Collection או לקנייהעונה 1 פרק 7 – Pushing Long Division to New Heights
20 באוקטובר 201629 דקותPut 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.ניסיון בחינם של The Great Courses Signature Collection או לקנייהעונה 1 פרק 8 – Pushing Long Division to Infinity
20 באוקטובר 201630 דקות"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.ניסיון בחינם של The Great Courses Signature Collection או לקנייהעונה 1 פרק 9 – Visualizing Decimals
20 באוקטובר 201632 דקותExpand 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!ניסיון בחינם של The Great Courses Signature Collection או לקנייהעונה 1 פרק 10 – Pushing the Picture of Fractions
20 באוקטובר 201630 דקותDelve 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.ניסיון בחינם של The Great Courses Signature Collection או לקנייהעונה 1 פרק 11 – Visualizing Mathematical Infinities
20 באוקטובר 201630 דקותPonder 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!ניסיון בחינם של The Great Courses Signature Collection או לקנייהעונה 1 פרק 12 – Surprise! The Fractions Take Up No Space
20 באוקטובר 201629 דקותDrawing on the bizarre conclusions from your look at infinite sets, 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.ניסיון בחינם של The Great Courses Signature Collection או לקנייהעונה 1 פרק 13 – Visualizing Probability
20 באוקטובר 201631 דקותProbability 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.ניסיון בחינם של The Great Courses Signature Collection או לקנייהעונה 1 פרק 14 – Visualizing Combinatorics: Art of Counting
20 באוקטובר 201634 דקותCombinatorics 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.ניסיון בחינם של The Great Courses Signature Collection או לקנייהעונה 1 פרק 15 – Visualizing Pascal's Triangle
20 באוקטובר 201632 דקותKeep playing with the approach from combinatorics, 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.ניסיון בחינם של The Great Courses Signature Collection או לקנייהעונה 1 פרק 16 – Visualizing Random Movement, Orderly Effect
20 באוקטובר 201631 דקותDiscover 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.ניסיון בחינם של The Great Courses Signature Collection או לקנייהעונה 1 פרק 17 – Visualizing Orderly Movement, Random Effect
20 באוקטובר 201631 דקותStart 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.ניסיון בחינם של The Great Courses Signature Collection או לקנייהעונה 1 פרק 18 – Visualizing the Fibonacci Numbers
20 באוקטובר 201634 דקותLearn 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!ניסיון בחינם של The Great Courses Signature Collection או לקנייהעונה 1 פרק 19 – The Visuals of Graphs
20 באוקטובר 201630 דקותInspired 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 return to the Fibonacci question.ניסיון בחינם של The Great Courses Signature Collection או לקנייהעונה 1 פרק 20 – Symmetry: Revitalizing Quadratics Graphing
20 באוקטובר 201631 דקותThrow 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.ניסיון בחינם של The Great Courses Signature Collection או לקנייהעונה 1 פרק 21 – Symmetry: Revitalizing Quadratics Algebra
20 באוקטובר 201628 דקותLearn 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.ניסיון בחינם של The Great Courses Signature Collection או לקנייהעונה 1 פרק 22 – Visualizing Balance Points in Statistics
20 באוקטובר 201630 דקותVenture 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.ניסיון בחינם של The Great Courses Signature Collection או לקנייהעונה 1 פרק 23 – Visualizing Fixed Points
20 באוקטובר 201633 דקותOne 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.ניסיון בחינם של The Great Courses Signature Collection או לקנייהעונה 1 פרק 24 – Bringing Visual Mathematics Together
20 באוקטובר 201632 דקותBy repeatedly folding a sheet of paper using a simple pattern, you bring together many mathematical principles. Conclude your study 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!ניסיון בחינם של The Great Courses Signature Collection או לקנייה