Close message

Welcome to Kanopy

Brought to you by Brooklyn Public Library

Not your library? Find it now
Loading...
The Power of a Mathematical Picture
Episode 1 of The Power of Mathematical Visualization
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…
Visualizing Negative Numbers
Episode 2 of The Power of Mathematical Visualization
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…
Algebra
The 18 videos in this collection focus on all aspects of Algebra, from logarithms to quadratic equations and partial fractions. Clip #1: "Mathematical Language" - Clip #2: "Powers or Indices" - Clip #3: "Logarithms" - Clip #4: "Substitution and Formulae"…
18 videos
Visualizing Ratio Word Problems
Episode 3 of The Power of Mathematical Visualization
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,…
Visualizing Extraordinary Ways to Multiply
Episode 4 of The Power of Mathematical Visualization
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…
Pushing Long Division to New Heights
Episode 7 of The Power of Mathematical Visualization
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.
Visualizing Mathematical Infinities
Episode 11 of The Power of Mathematical Visualization
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…
Visualizing Area Formulas
Episode 5 of The Power of Mathematical Visualization
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…
The Power of Place Value
Episode 6 of The Power of Mathematical Visualization
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…
Visualizing the Fibonacci Numbers
Episode 18 of The Power of Mathematical Visualization
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…
Visualizing Pascal's Triangle
Episode 15 of The Power of Mathematical Visualization
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…
Algebra: A Piece of Cake
Part of the Series: Math Series 1
Covers variable, numerical substitution, algebraic conventions, developing algebraic formulas from number patterns. Clip #1: "Algebra: A Piece of Cake Part 1" - Clip #2: "Algebra: A Piece of Cake Part 2" -
2 videos
Pushing Long Division to Infinity
Episode 8 of The Power of Mathematical Visualization
"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…
Visualizing Decimals
Episode 9 of The Power of Mathematical Visualization
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…
Pushing the Picture of Fractions
Episode 10 of The Power of Mathematical Visualization
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…
The Visuals of Graphs
Episode 19 of The Power of Mathematical Visualization
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…
Surprise! The Fractions Take Up No Space
Episode 12 of The Power of Mathematical Visualization
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…
Visualizing Orderly Movement, Random Effect
Episode 17 of The Power of Mathematical Visualization
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…
Symmetry: Revitalizing Quadratics Algebra
Episode 21 of The Power of Mathematical Visualization
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…
Probability
Part of the Series: Math Series 2
Expressing a probability between certainty and impossible as the likelihood of an uncertain event occurring --conducting and recording probability experiments using small and large number trials with replacement --calculating the theoretical probability of a particular event occurring --expressing probabilities as…
2 videos