Math

06:40 New
Number Sticks  Numberphile
/ 24 viewsKatie Steckles dazzles us with Mental Logs. Have a look at Brilliant (and get 20% off) here: https://brilliant.org/Numberphile More links & stuff in full description below ↓↓↓ More Katie on Numberphile: http://bit.ly/Steckles_Playlist Katie Steckles: http

03:24 New
Round Peg in a Square Hole  Numberphile
/ 14 viewsFeaturing Tadashi Tokieda  more Tadashi videos at: http://bit.ly/tadashi_vids More links & stuff in full description below ↓↓↓ Tadashi Tokieda is a Professor of Mathematics at Stanford University (though this was filmed when he was at Cambridge, in the U

08:06 New
Catalan's Conjecture  Numberphile
/ 14 viewsWith Dr Holly Krieger from Murray Edwards College, University of Cambridge. Have a look at Brilliant (and get 20% off) here: https://brilliant.org/Numberphile More links & stuff in full description below ↓↓↓ More Numberphile videos with Dr Krieger: http:/

09:06 New
Superpermutations  Numberphile
/ 12 viewsThe Great Courses Plus (free trial): http://ow.ly/C3FE30hIvhc This video features Dr James Grime. More links & stuff in full description below ↓↓↓ More James Grime on Numberphile: http://bit.ly/grimevideos James Grime: http://singingbanana.com Tackling th

14:03 New
Tree Gaps and Orchard Problems  Numberphile
/ 13 viewsGet 10% off at Squarespace: https://www.squarespace.com/numberphile This feature features Ben Sparks... More links & stuff in full description below ↓↓↓ Ben Sparks Twitter: https://twitter.com/SparksMaths More of Ben on Numberphile: https://youtu.be/ETrYE

22:32 New
Cannons and Sparrows  Numberphile
/ 15 viewsFeaturing Professor Günter Ziegler, who was visiting at MSRI. Extra footage at: https://youtu.be/FHkaN9FOzUY More links & stuff in full description below ↓↓↓ This video features Professor Günter Ziegler from Institut für Mathematik, Freie Universität Berl

08:25 New
Calculating a Car Crash  Numberphile
/ 11 viewsCheck out https://brilliant.org/numberphile (20% off premium subscription) This video features Ben Sparks. More links below ↓↓↓ Ben Sparks website: https://www.bensparks.co.uk More of Ben on Numberphile: https://youtu.be/ETrYE4MdoLQ https://youtu.be/kbKtF

09:07 New
The SquareSum Problem  Numberphile
/ 11 viewsMatt Parker discusses a problem involving Square Sums. Go deeper with extra footage: https://youtu.be/7_ph5djCCnM More links & stuff in full description below ↓↓↓ More Matt Parker on Numberphile: http://bit.ly/Matt_Videos Matt's projects and other stuff:

16:12 New
River Crossings (and Alcuin Numbers)  Numberphile
/ 12 viewsDiscussing vertex covers and Alcuin numbers for graphs  and a famous old puzzle. Filmed at MSRI with Dr Annie Raymond. More links & stuff in full description below ↓↓↓ Annie Raymond: https://www.msri.org/people/38568 The Alcuin Number of a Graph: https:/

05:54 New
Ham Sandwich Problem  Numberphile
/ 11 viewsThis video features Dr Hannah Fry (more links below) ↓↓↓ Check out Brilliant.org: https://brilliant.org/numberphile (20% off premium subscription) That circle cutting problem on Brilliant: https://brilliant.org/NumberphileSandwich Hannah Fry on Twitter: h

06:03 New
Don Bradman's Duck  Numberphile
/ 18 viewsOne of the most famous stories from the sort of cricket involves numbers, averages, and a duck. More links & stuff in full description below ↓↓↓ Archive footage courtesy of AP Archive: https://www.youtube.com/c/aparchive * Batting average list shown was c

03:45 New
The infinite life of pi  Reynaldo Lopes
/ 20 viewsView full lesson: http://ed.ted.com/lessons/theinfinitelifeofpireynaldolopes The ratio of a circle's circumference to its diameter is always the same: 3.14159... and on and on (literally!) forever. This irrational number, pi, has an infinite number

01:38 New
How to Turn a Sphere Inside Out
/ 28 viewsThis video describes a way to invert a sphere. Simply fascinating to watch.

13:17
Probability that at least 2 people in a room of 30 share the same birthday  Probability and Statist
/ 30 viewsThe probability that at least 2 people in a room of 30 share the same birthday. Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/probability/probabilityandcombinatoricstopic/probability_combinatorics/e/probab

04:34
OK Go Sandbox  One Moment of Math
/ 158 viewsDamian Kulash, lead singer of OK Go, discusses the immense amount of math behind their video,”The One Moment”. This video is part of www.OKGoSandbox.org
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08:00
15 BRILLIANT MATH TRICKS THEY DON'T TEACH YOU AT SCHOOL
/ 181 viewsToo bad they don't teach you this at school! But I always got you! So check out these genius Math tricks and have fun! ;)  5Minute Crafts: https://www.goo.gl/8JVmuC F
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01:22
Mathemagic  (a+b)²=a²+2ab+b²  But Why?
/ 18 viewshttp://www.youtube.com/watch?v=sv2iHQIpZW8  Pythagoras Theorem explained by Bawa. One of the elementary formula in high school mathematics, most of us know this formula. But do we actually know why? In this video Khurshed Batliwala, fondly called as Bawa

02:29
Division with Zero  Maths Tricks #4
/ 18 viewsIn this video Bawa first explains what is division and then goes on to talk about division by zero. You will understand exactly why anything divided by zero is not defined, zero divided by anything is zero and zero divided by itself is indeterminate. This

01:29
Mathemagic  Did you know that the Nine Tables is in your fingers???
/ 19 viewsWith a post graduate in Mathematics from the Indian Institute of Technology, Bombay, Khurshed Batliwala, or "Bawa" as he is fondly known (a nick name that has stuck from his IIT days) is an extraordinary personality. In his own words, he decided "it was b

02:23
Mathemagic  Multiplying numbers using fingers
/ 16 viewsWith a post graduate in Mathematics from the Indian Institute of Technology, Bombay, Khurshed Batliwala, or "Bawa" as he is fondly known (a nick name that has stuck from his IIT days) is an extraordinary personality. In his own words, he decided "it was b

06:01
Can you solve the seven planets riddle?  Edwin F. Meyer
/ 264 viewsPractice more problemsolving at https://brilliant.org/TedEd/ Solution to the bonus riddle mentioned at the end: https://brilliant.org/TedEdTitanic/ Your interstellar police squad has tracked a group of criminals to a cluster of seven planets. Now you mus
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05:02
How To Make a Hexaflexagon: The Definitive Guide
/ 25 viewsPrintable patterns: http://vihart.com/hexaflexagons Shirts (we only printed a limited run, sorry if we're sold out of your favourite!): https://store.dftba.com/collections/vihart This video is supported not mostly by shirts but mostly by viewers like you

04:45
Estimating p value from simulation
/ 22 viewsExample estimating a pvalue based on a simulation to approximate the sample distribution of the sample proportions (assuming the null hypothesis is true).

07:58
p values and significance tests
/ 18 viewsp values, significance levels, null hypotheses, alternative hypotheses, and significance tests

05:42
Examples of null and alternative hypotheses
/ 24 viewsExamples of null and alternative hypotheses

10:15
17 FAST MATHS TRICKS YOU MUST KNOW
/ 16 viewsWanna be a Math genius? Check out these tricks! They're garanteed to upgrade your Math skills and bring you on another level! ;) Subscribe to 5Minute Crafts GIRLY: https://goo.gl/fWbJqz Subscribe to 5Minute Workouts: https://goo.gl/67owiQ 5Minute Craft

09:13
Math Antics  Subtracting Mixed Numbers
/ 32 viewsLearn More at mathantics.com Visit http://www.mathantics.com for Free math videos and additional subscription based content!

15:14
Mo Gawdat of Google X: The Secret to Happiness May Lie in a Mathematical Equation
/ 15 viewsMo Gawdat, the chief business officer of the moonshot factory Google X, has designed an algorithm to make you happy. Gawdat started writing when his son died. The resulting book, Solve for Happy, describes the model of happiness that he and his late son b

04:23
The coin flip conundrum  PoShen Loh
/ 29 viewsCheck out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/thecoinflipconundrumposhenloh When you flip a coin to make a decision, there's an equal chance of getting heads and tails. What if you flipped two

03:12
Science Artist Uses Math to Make Sculptures
/ 21 viewsJohn Muntean has been creating magic angle sculptures since 1986. At first, the sculpture just looks like an abstract piece. When rotated at the magic angle and lit from above, a threepart masterpiece emerges. See more from John Muntean: https://www.jvmu

06:25
The magic of Fibonacci numbers  Arthur Benjamin
/ 21 viewsMath is logical, functional and just ... awesome. Mathemagician Arthur Benjamin explores hidden properties of that weird and wonderful set of numbers, the Fibonacci series. (And reminds you that mathematics can be inspiring, too!) TEDTalks is a daily vide

07:13
How big is infinity?  Dennis Wildfogel
/ 10 viewsView full lesson: http://ed.ted.com/lessons/howbigisinfinity Using the fundamentals of set theory, explore the mindbending concept of the "infinity of infinities"  and how it led mathematicians to conclude that math itself contains unanswerable ques

01:20
Proof Without Words: The Circle
/ 12 viewsProve πR² using only beads and a ruler! I first saw this proof in an article by Russell Jay Hendel, Dowling College: http://bit.ly/LQlwQw minutephysics is now on Google+  http://bit.ly/qzEwc6 And facebook  http://facebook.com/minutephysics And twitter 

01:56
How to Count Infinity
/ 13 views"Some infinities are bigger than other infinities"  Hazel Grace Lancaster, in "The Fault in Our Stars," by John Green minutephysics is now on Google+  http://bit.ly/qzEwc6 And facebook  http://facebook.com/minutephysics And twitter  @minutephysics Min

04:11
The Order of Operations is Wrong
/ 13 viewsMorally Wrong, that is... MinutePhysics is on Google+  http://bit.ly/qzEwc6 And facebook  http://facebook.com/minutephysics And twitter  @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics  all

01:20
Foiled Proof
/ 14 viewsMinutePhysics is on Google+  http://bit.ly/qzEwc6 And facebook  http://facebook.com/minutephysics And twitter  @minutephysics Minute Physics provides an energetic and entertaining view of old and new problems in physics  all in a minute! Music by Nat

13:00
What Is Statistics: Crash Course Statistics #1
/ 31 viewsWelcome to Crash Course Statistics! In this series we're going to take a look at the important role statistics play in our everyday lives, because statistics are everywhere! Statistics help us better understand the world and make decisions from what you'l

05:26
Can you solve the dark coin riddle?  Lisa Winer
/ 255 viewsPractice more problemsolving at https://brilliant.org/TedEd/ Solution to the bonus riddle mentioned at the end: https://brilliant.org/tededcoinflip You heard the travelers’ tales, you followed the maps, and now, you’ve finally located the dungeon contain
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02:13
Crazy Math Trick: I will guess Your Age! (OLD 2016 version)
/ 37 viewsCheck here for the 2017 version: https://www.youtube.com/watch?v=PQjNF34H3Bs&feature=youtu.be ★★ For more broccolies like this... Subscribe to DB! ★★ I will guess your age! This is a crazy math trick that is likely to impress you and your friends too! You

07:53
How to Figure Out the Day of the Week For Any Date Ever
/ 36 viewsTo learn more about Brilliant, go to https://brilliant.org/BeSmart/ and sign up for free. First 200 people will get 20% off the annual Premium subscription. ↓↓↓ More info and sources below ↓↓↓ You can be a human computer too. Our cheat sheet: http://bit.l

47:36
Completing the square  Live algebra lesson
/ 39 viewsDo you need help with your algebra homework? Send photos of any problems you need help with to LiveStream@MathMeeting.com. Today I am focusing on solving quadratic equations by completing the square. I will help you live right here on this live stream :)

04:28
Product rule  Logarithm derivatives example
/ 19 viewsLearn calculus with this product rule Derivative example with logarithms and exponential functions. This complete calculus derivatives tutorial explains why and how to use the product rule. To see all my calculus videos check out my website http://MathMee

04:01
Product rule  Calculus derivatives tutorial
/ 22 viewsLearn how to take the derivative of a function using the product rule. This complete calculus derivatives tutorial explains why and how to use the product rule. To see all my calculus videos check out my website http://MathMeeting.com My name is Chris and

04:15
A clever way to estimate enormous numbers  Michael Mitchell
/ 22 viewsView the full lesson here: http://ed.ted.com/lessons/michaelmitchellacleverwaytoestimateenormousnumbers Have you ever tried to guess how many pieces of candy there are in a jar? Or tackled a mindbender like: "How many piano tuners are there in Chi

11:09
15 GENIUS MATH TRICKS THAT ARE ACTUALLY EASY
/ 40 viewsHow to embarrass your teacher. Smart and simple backs to school math hacks and tricks. Learn how to multiply fast in your head. Subscribe to 5Minute Crafts KIDS: https://goo.gl/PEuLVt 

05:19
Riddles: 5 "easy"... & one IMPOSSIBLE! (with answers)
/ 49 views★★★★ Riddles and more... Subscribe to Daily Broccoli! ★★★★ This is a fun video with 5 supposedly "easy" riddles with answers, and one impossible question. I love these riddles, because they are clever and in fact not all that difficult. But still I wasn't

10:07
New IQ Test! (with answers)
/ 37 views★★ More Broccoli = More IQ :DD (Please subscribe!!!) ★★ This IQ test is amazingly accurate. Check how many questions you got right and what it means in terms of your IQ. Are you smart? How intelligent are you? What is my IQ? This new IQ Test will tell you

02:13
Crazy Math Trick: I will guess Your Age! (2017 with answers)
/ 50 views★★ For more broccolies like this... Subscribe to DB! ★★ I will guess your age! This is a crazy math trick that is likely to impress you and your friends too! You start with a RANDOM number and then end up with your Age and that number... pretty incredible

04:26
97% Fail... Test your EYES! (incl. secret message)
/ 40 views★★ Secret message because... we reached + 278k SUBS!!!! ★★ Massive thank you! You are the best!! The überchallenge is to be able to find all the letters that are hidden in the images. ...if you see all 12 letters, you must have massively good eyes! This i

01:52
Three Solutions! Can You Find Them? (math trick with answers)
/ 25 views★★ Please LIKE if you found at least ONE solution!! ★★ This is an impossible equation, because 6+4 is clearly not 4... BUT there are three solutions to this equation by moving just ONE matchstick. Can you find all three solutions? I am curious to see how

04:55
You will NOT know all of these sounds, I am SURE!! (with answers)
/ 34 views★★ For more sound broccolies like this... Subscribe to DB! ★★ You will NOT know all of these sounds, I am SURE!! I would be incredibly surprised if anyone actually identifies all of these animal sounds... This is a listening test to see how well you know

09:04
Math Antics  Adding Mixed Numbers
/ 73 viewsLearn More at mathantics.com Visit http://www.mathantics.com for Free math videos and additional subscription based content!

19:41
The Actual Mathematics of Popping Champagne Corks
/ 26 viewsThanks to Helen Czerski for making the video with me! https://www.helenczerski.net/ Helen is physicist, oceanographer and broadcaster in the Department of Mechanical Engineering at University College London. You should check out her book Storm in a Teacup

04:42
The Mathematics of Error Correction  with Marcus du Sautoy
/ 33 viewsComputers use errorcorrecting codes to detect mistakes in binary notations  even just a single change from 0 to 1. In this clip from the 2006 CHRISTMAS LECTURES "The num8er my5teries", Marcus du Sautoy runs errorcorrecting code tests with an audience m

06:11
Hexaflexaflakes
/ 21 viewsI hope you enjoy this fun holiday craft! This video is supported by viewers like you! Thanks especially to: Caleb Wright, Albert Wenger, CHLOE, Pat Devlin, Jack Heidrick, Al3x, David Perryman, Wish Society, Carol Ghiorsi Hart, Chris Pierik, Andrea Di Biag

06:30
When To Try New Things (According to Math)
/ 40 viewsThe Explore/Exploit Trade Off. The best algorithm for when to try new things and when to stick to what you know: the Gittins Index. Based on a chapter of the book Algorithms to Live By, The Computer Science of Human Decisions by Brian Christian and Tom Gr

06:06
Only People With An IQ Of 141 Can Solve These Number Puzzles
/ 49 viewsOnly People With An IQ Of 141 Can Solve These Number Puzzles ▶ Facebook: https://www.facebook.com/WOWQuiz ▶ Twitter: https://twitter.com/WOWQuizVideo 8 Cunning Puzzles That Are Not So Easy to Solve https://www.youtube.com/watch?v=Jl044xgzeKY 6 Brainteaser

05:14
10 Tricky Questions To Test Your Brain
/ 60 views10 tricky questions to test your brain and IQ level. Subscribe: https://goo.gl/Hnoaw3  Other Videos you might like: 20 Things You Didn't Know About MONEY https://yout

04:13
6 Riddles That Defy Logic
/ 43 views6 Riddles That Defy Logic Facebook: https://www.facebook.com/WOWQuiz Twitter: https://twitter.com/WOWQuizVideo Only Geniuses Can Find All The Differences https://www.youtube.com/watch?v=53II7KUz9ow Only a Genius Can Solve These 7 Brainteasers in 30 Second

04:17
How Encryption Keys Work  with Chris Bishop
/ 179 viewsWhat does the padlock icon on your internet browser mean and why is encryption important? In this clip from 2008 CHRISTMAS LECTURES "Hitech trek", Chris Bishop uses coloured water to demonstrate how information is transferred on the internet. Subscribe f
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09:20
An astonishing old calculator  Numberphile
/ 20 viewsCliff explains his passion for two Friden EC132s. Extra discussion and explanation at: LINK More links & stuff in full description below ↓↓↓ More Cliff videos: http://bit.ly/Cliff_Videos Calculator Unboxings: http://bit.ly/CalcUnbox Millionaire Machine:

08:40
78557 and Proth Primes  Numberphile
/ 26 viewsJames Grime is back and talking prime numbers. Check out Brilliant.org by using the link: https://brilliant.org/numberphile (20% off premium subscription) More on prime numbers: http://bit.ly/primevids James Grime: http://singingbanana.com Editing by Pete

09:00
The Enormous TREE(3)  Numberphile
/ 32 viewsProfessor Tony Padilla on the epic number, TREE(3). Continues at: https://youtu.be/IihcNa9YAPk More links & stuff in full description below ↓↓↓ Graham's Number: http://bit.ly/G_Number Numberphile is supported by the Mathematical Sciences Research Institut

10:33
Strange Spheres in Higher Dimensions  Numberphile
/ 21 viewsSquarespace (including 10% off): https://www.squarespace.com/numberphile Video features Matt Parker. More links & stuff in full description below ↓↓↓ Parker CIRCLE TShirts and Mugs (torment Matt at his live shows!): https://teespring.com/stores/parkerci

08:04
Casting Out Nines  Numberphile
/ 20 viewsDr James Grime and a handy trick for checking calculations. Ditch the nines... More links & stuff in full description below ↓↓↓ Some extra footage from this interview: https://youtu.be/wQsQ8joretY Numberphile is supported by the Mathematical Sciences Rese

09:08
Aaron Numbers  Numberphile
/ 20 viewsA story of baseball, number theory, and serendipity. More links & stuff in full description below ↓↓↓ Featuring Carl Pomerance from the Department of Mathematics at Dartmouth College. Images from Erdös/Aaron meeting courtesy of Rob & Madelyn Gould  http:

06:29
When To Quit (According to Math)
/ 20 viewsOptimal Stopping. The Secretary Problem Explained. Taken from a chapter of the book "Algorithms to Live By  The Computer Science of Human Decisions" by Brian Christian and Tom Griffiths Hi! I'm Jade. Subscribe to Up and Atom for new physics, math and com

03:00
Multiply Numbers By Drawing Lines
/ 92 viewsGow to multiply numbers by drawing lines. Get the Multiply By Lines Book! https://www.amazon.com/gp/product/1500866148/ If you like my videos, you can support me at Patreon: http://www.patreon.com/mindyourdecisions Connect on social media. I update each s
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05:21
Will We All Be Overweight By 2048?
/ 48 viewsWill we all be overweight by 2048? The dangers of linear regression and linear thinking. Taken from a chapter of Jordan Ellenberg's amazing book How Not to Be Wrong: The Power of Mathematical Thinking. Thanks to the Vlogbrothers for their sponsorship of t

04:58
What is the tragedy of the commons?  Nicholas Amendolare
/ 39 viewsCheck out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/whatisthetragedyofthecommonsnicholasamendolare Is it possible that overfishing, super germs, and global warming are all caused by the same thing

12:47
Math Antics  Mixed Numbers
/ 70 viewsIn this remake of our Mixed Numbers video, we take a more intuitive approach to converting between Mixed Numbers and Improper Fractions. You can still access the old version of the video here: https://www.youtube.com/watch?v=55KA6kaXFY

03:37
Are University Admissions Biased?  Simpson's Paradox Part 2
/ 38 viewsSimpson's Paradox Part 2. Thanks to Skillshare for supporting this video! Head to http://skl.sh/minutephysics for your first two months free. Comments disabled because the discourse failed to remain civil. This video is about how to tell whether or not un

06:02
Math, When Are You Going To Use It?
/ 33 viewsIf you're in or went to high school, you're familiar with the phrase "When am I ever going to use this?" when talking about pretty much anything you learn in math class. This is the answer to that question. The real answer, not something like "one day a s

05:58
Can You Crack This Four Card Code?
/ 39 viewsA surprisingly tricky card riddle. You'll need to put your thinking caps on for this one. Hi! I'm Jade. I'm an Aussie with a Bachelor's degree in Applied Physics. After three years and over 100 lab sessions, I realized I'm terrible at experiments. So now

05:01
The Physics of SANTA
/ 48 viewsThe Physics of Santa. With nearly 2 billion children in the world, how does Santa deliver all those presents on Christmas Eve? Hi! I'm Jade. I want to share the wonderful world of physics with you in an easy and fun way. ***SUBSCRIBE*** https://www.youtub

05:27
An unexpected way to inflate a balloon  Numberphile
/ 49 viewsUsing a kamifusen (a Japanese paper balloon). Featuring Tadashi Tokieda. More Tadashi videos: http://bit.ly/tadashi_vids More links & stuff in full description below ↓↓↓ Objectivity (videos by Brady about science objects): http://bit.ly/Objectivity Discus

12:28
Can You Find the Odd Object Out in These Pictures?
/ 42 viewsCan You Find the Odd Object Out in These Pictures? Facebook: https://www.facebook.com/WOWQuiz Twitter: https://twitter.com/WOWQuizVideo 10 Mind Bending Matchstick Puzzles https://www.youtube.com/watch?v=N1JsKW57sug How Good Are You At Spotting Details? ht

04:48
10 Riddles That Will Trick Your Brain
/ 77 viewsTest your intelligence by answering correctly all these riddles. Subscribe: https://goo.gl/Hnoaw3  Other Videos you might like: 10 CRAZY Mind Game Tricks To Fool Your

13:59
MENACE: the pile of matchboxes which can learn
/ 26 viewsSee more data and check out what we changed on the second day (which caused MENACE to learn a different strategy) in the second video: https://youtu.be/KcmjOtkULi4 Check out Matt Scroggs’s original blog post about MENACE and in the amazing Chalkiest magaz

02:14
Visualizing the 600Cell
/ 29 viewsMathematician/geometer Dugan Hammock of Quantum Gravity Research shows us a visualization of the 4dimensional 600Cell projected to 3D object (further projected, technically, to 2D on his computer screen.) The 600Cell is a 4dimensional shape made of 60

05:27
9 Tricky Puzzles That Will Totally Blow Your Brain
/ 86 viewsOnce you show children’s puzzles toadults, most ofthem immediately get abrain freeze. Try to stretch your brain alittle and check ifyou can cope with questions from children’s books! Subscribe to Bright Side : https://goo.gl/rQTJZz 

04:47
Can you solve the egg drop riddle?  Yossi Elran
/ 133 viewsCheck out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/canyousolvetheeggdropriddleyossielran The city has just opened its oneofakind Faberge Egg Museum, with a single egg displayed on each floor o
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06:34
10 IQ and Riddles For Kids With Tricky Answers
/ 142 views10 IQ and Riddles For Kids With Tricky Answers. These are the best 10 IQ and Riddles For Kids With Tricky Answers. These are perfect for brain teasers for kids, teens and all. Please try this once and do not forget to like, share and comment.

14:18
The Ideal Auction  Numberphile
/ 60 viewsPreston McAfee is the chief economist at Microsoft. More links & stuff in full description below ↓↓↓ Benford's Law: https://youtu.be/XXjlR2OK1kM Preston McAfee: http://www.mcafee.cc Animation by Pete McPartlan Numberphile is supported by the Mathematical

08:55
Pancake Numbers  Numberphile
/ 60 viewsKatie Steckles on Pancake Numbers.. Signup for your FREE trial to The Great Courses Plus here: http://ow.ly/EJwH30fiZ1d More links & stuff in full description below ↓↓↓ More Numberphile videos with Katie: http://bit.ly/Steckles_Playlist Katie Steckles web

03:32
When do clock hands overlap?  Numberphile
/ 51 viewsHow often do a clock's minute and hour hands cross? Featuring Cliff Stoll..... See Objectivity at: https://www.youtube.com/c/ObjectivityVideos More links & stuff in full description below ↓↓↓ More Cliff videos: http://bit.ly/Cliff_Videos Cliff Stoll's Kle

10:06
Matt & Hugh: the mystery of two balls in a can
/ 48 viewsDr Hugh Hunt is a Senior Lecturer in Engineering at the University of Cambridge and a Fellow of Trinity College. http://www.hughhunt.co.uk/ Watch Hugh and I calculate how fast a motorbike can go on a wall of death. https://youtu.be/b23i3NhFLDc CORRECTIONS

04:30
Where do math symbols come from?  John David Walters
/ 122 viewsSign up for our newsletter here: https://ed.ted.com/newsletter View full lesson: https://ed.ted.com/lessons/wheredomathsymbolscomefromjohndavidwalters Math is full of symbols: lines, dots, arrows, English letters, Greek letters, superscripts, subs
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04:47
The Case for Hovercars
/ 49 viewsMathematically, they've got a lot going for them. Last week's video on the calculus of bad driving: https://www.youtube.com/watch?v=pI62ANEGK6Q NOTE: Leibniz independently discovered/invented calculus. Liebnitz is my imaginary slope friend.

03:54
THESE POPULAR RIDDLES WILL BLOW YOUR MIND  Decipher Riddles & Brain Teasers
/ 112 viewsTHESE POPULAR RIDDLES WILL BLOW YOUR MIND  Decipher Riddles & Brain Teasers These popular riddles on logic can be solved by any kid or adult who has high IQ. These riddles with answers will always test your brain and make your brain scratch. There are th

11:37
CARNIVAL SCIENCE How to Win!
/ 139 viewsPrepare to drop some knowledge next time you visit the carnival. Go expand your mind and learn something new at Skillshare.com. The first 300 people get 2 months FREE! http://skl.sh/rober MUSIC 0:21 Ceral Killa Blue Wednesday  https://soundcloud.com/b
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04:40
Simpson's Paradox
/ 18 viewsThanks to https://brilliant.org/minutephysics for sponsoring this video! This video is about Simpson's paradox, a statistical paradox and ecological fallacy where seemingly contradictory results are implied by a single set of data depending on how it's gr

05:29
Creating The NeverEnding Bloom
/ 32 viewsHelp support our video productions: http//www.patreon.com/scifri *Correction May 1, 2017: At 2:06, a graphic in the video incorrectly wrote the formula for the golden ratio. It should be B/A = A/(A+B). We regret the error. John Edmark's sculptures are bot

05:32
How did Polynesian wayfinders navigate the Pacific Ocean?  Alan Tamayose and Shantell De Silva
/ 68 viewsLearn more about TEDEd Clubs here: https://ed.ted.com/clubs Visit the TEDEd Clubs YouTube channel: https://www.youtube.com/channel/UCskU_g7t6b5ecsA1CTS3y9Q View full lesson: https://ed.ted.com/lessons/howdidpolynesianwayfindersnavigatethepacifico
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05:35
Secrets to measuring a piece of paper  Numberphile
/ 43 viewsWhen Cliff Stoll sets your homework, there's always an extra lesson. More links & stuff in full description below ↓↓↓ More Cliff videos: http://bit.ly/Cliff_Videos Cliff's Klein Bottles: http://www.kleinbottle.com Numberphile is supported by the Mathemati

24:59
Juggling by Numbers  Numberphile
/ 47 viewsJuggling with Colin Wright. More links & stuff in full description below ↓↓↓ Colin Wright on Twitter: https://twitter.com/colinthemathmo Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are

06:23
The Neverending Story (and Droste Effect)  Numberphile
/ 43 viewsCliff wants to tell a story on a Möbius strip... And discusses recursive hot chocolate!? More links & stuff in full description below ↓↓↓ More Cliff Stoll videos: http://bit.ly/Cliff_Videos Extra bit from this interview: https://youtu.be/RbCL498bIA Drost

02:54
Meet the Inventor of the Rubik’s Cube
/ 149 viewsSince the 1980s, the Rubik’s Cube has captivated the minds of puzzle solvers around the globe. But how did one of the world’s most addictive and prolific puzzles come to be? It all began in the beautiful city of Budapest, in the beautiful mind of Ernő Rub
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14:22
What is 0 to the power of 0?
/ 53 viewsGreat lecture about what 0 to the power 0 really means.

10:00
Fibonacci Numbers hidden in the Mandelbrot Set  Numberphile
/ 52 viewsWith Dr Holly Krieger from Murray Edwards College, University of Cambridge. Have a look at Brilliant (and get 20% off) here: https://brilliant.org/Numberphile More Numberphile videos with Dr Krieger: http://bit.ly/HollyKrieger Her Twitter: https://twitter

05:51
Postcards from backstage: Rob and the AntiMontyHall Problem
/ 39 viewsKatie’s postcard is here: https://youtu.be/dFvzUNMU1Lo Hugh’s postcard over here: https://youtu.be/b23i3NhFLDc More about Maths Inspiration shows for sixth formers: http://www.mathsinspiration.com/ We have 2017 shows in Manchester, Winchester, London, Bir

15:25
The Coriolis Effect Test: two hemispheres, one sink
/ 46 viewsThe Coriolis Effect Test: two hemispheres, one sink Disproven! The Coriolis Effect does not make the water drain out a sink anticlockwise in the Northern Hemisphere and clockwise in the Southern. Have you taken the same sink to both hemispheres? If so: s

07:33
Equally sharing a cake between three people  Numberphile
/ 51 viewsAudible (30day trial, free audio book): https://www.audible.com/numberphile More links & stuff in full description below ↓↓↓ This video features Dr Hannah Fry. More videos with Hannah: http://bit.ly/hannah_vids Hannah's website: http:/

03:21
Fractions on a Number Line Song for 3rd Grade & 4th Grade
/ 92 viewsEnjoy our growing library of math videos at https://www.numberock.com ◀ Safe Link 1. VIDEO'S LESSON PLAN: COMING SOON! 2. NUMBEROCK DIGITAL LIBRARY 70% OFF: https://www.teacherspayteachers.com/Product/MathWorksheetsMoreNUMBEROCKMusicalMathWorkbooka

03:05
9 Times Table Song Rap  Multiples of Nine REMIX by NUMBEROCK
/ 79 viewsEnjoy our growing library of math videos at https://www.numberock.com ◀ SAFE LINK MULTIPLICATION FLASHCARDS & ACTIVITIES: https://www.teacherspayteachers.com/Product/SkipCountingBy99sMultiplicationSongswithMusicVideospowerdotSchooHouseRockMul

04:43
A brief history of banned numbers  Alessandra King
/ 42 viewsCheck out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/abriefhistoryofbannednumbersalessandraking They say the pen is mightier than the sword, and authorities have often agreed. From outlawed religiou

19:37
Smart Math Techniques  Solve maths problems in seconds
/ 96 viewsTopic In this topic our expert trainer Shruti explains how to solve difficult maths problems in a matter of seconds. OBJECTIVE To enable you to to do faster calculation using best speed maths techniques and make you score more in your exams. These speed m

08:28
Finding X and Y Intercepts on a Graph (TTP Video 31)
/ 41 viewsDefining and finding the X and Y intercepts when given a graph.

29:35
Graphing Lines by Solving for Y and Plotting Points (TTP Video 30)
/ 38 viewsAn extension of the previous video. Focus will be on development of more elegant graphing techniques.

26:58
Graphing Lines by Plotting Points (TTP Video 29)
/ 34 viewsHow to Graph lines by making tables and plotting points. Focus will be on developing better techniques.

03:34
Coins Song For Kids  A Fun Rap For Kindergarten and Up
/ 49 viewsEnjoy our growing library of math videos at https://www.numberock.com ◀ Safe Link 1. VIDEO'S LESSON PLAN: https://www.teacherspayteachers.com/Product/CoinsandChangeMultimediaUnitCountingCoinsandMoneyuptoaDollar3386591 ◀ Safe Link 2. NUMBEROCK

02:39
Adding & Subtracting Fractions Song: LIKE and UNLIKE Denominators
/ 99 viewsEnjoy our growing library of math videos at https://www.numberock.com ◀ SAFE LINK VIDEO'S LESSON PLAN: https://www.teacherspayteachers.com/Product/AddingandSubtractingFractionswithUnlikeDenominatorsVideosActivity3340640 ◀ Safe Link NUMBEROCK DIGI

02:46
Adding Decimals Song for Kids  Includes Subtracting Decimals  4th & 5th Grade
/ 82 viewsEnjoy our growing library of math videos at https://www.numberock.com ◀ SAFE LINK VIDEO'S LESSON PLAN: https://www.teacherspayteachers.com/Product/AddingandSubtractingDecimalswithDecimalPlaceValueVideosActivity3340623 ◀ Safe Link NUMBEROCK DIGIT

13:24
Basic Linear Functions  Math Antics
/ 51 viewsLearn More at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!

05:17
How many ways are there to prove the Pythagorean theorem?  Betty Fei
/ 61 viewsCheck out our Patreon page: https://www.patreon.com/teded View full lesson: https://ed.ted.com/lessons/howmanywaysaretheretoprovethepythagoreantheorembettyfei What do Euclid, 12yearold Einstein, and American President James Garfield have in c

05:56
Simpson's Paradox  Statistics gone wrong?
/ 52 viewsIn this video I hope to give you an intuitive grasp of the tricky Simpson's Paradox, which can and has lead to some interesting reallife problems with interpreting statistics. Check wikipedia for more info: http://en.wikipedia.org/wiki/Simpson's_paradox

06:35
Only a Genius Can Solve These Riddles in 2 Minutes
/ 144 viewsLogic puzzles are good for people of all ages because they give our minds a chance to limber up. Can you solve each of them in 15 seconds? If so, you can consider yourself a genius (we aren’t – we couldn’t get the last one). Subscribe to Bright Side : htt

07:42
7 Visual Riddles to Test Your Brain Speed
/ 97 viewsOnly a true genius can solve these 7 visual riddles in less than a minute. Subscribe to Bright Side : https://goo.gl/rQTJZz  Our Social Media: Facebook: https://www.fa

04:12
Correlation CAN Imply Causation!  Statistics Misconceptions
/ 48 viewsHave fun improving your math & physics skills! Head to http://brilliant.org/minutephysics Footnote video: https://www.youtube.com/watch?v=iMbcMMe0D_Y This video is about how causal models (which use causal networks) allow us to infer causation from correl

09:31
Fold and Cut Theorem  Numberphile
/ 39 viewsLynda free trial (try the typography stuff!!): http://www.lynda.com/numberphile Katie Steckles discusses the Fold and Cut Theorem  from A to Z. More links & stuff in full description below ↓↓↓ Katie: http://www.katiesteckles.co.uk More

06:16
Why Nature Loves Hexagons (featuring Infinite Series!)
/ 102 viewsFollow me to Infinite Series for 4Dimensional Bees! https://youtu.be/X8jOxEGVyPo Don’t miss our next video! SUBSCRIBE! ►► http://bit.ly/iotbs_sub ↓↓↓ More info and sources below ↓↓↓ From spirals to spots to fractals, nature is full of interesting pattern
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03:38
Greater Than Less Than for Grades K1  Comparing Numbers to 100
/ 116 viewsVIDEO'S LESSON PLAN: https://www.teacherspayteachers.com/Product/GreaterThanLessThanWorksheetsGameAnimatedVideoComparingNumbers3137460 ◀ Safe Link NUMBEROCK DIGITAL LIBRARY: https://www.teacherspayteachers.com/Product/MathWorksheetsMoreNUMBER

03:48
Comparing Decimals with Less Than and Greater Than  Grades 46
/ 96 viewsVIDEO'S LESSON PLAN: https://www.teacherspayteachers.com/Product/ComparingDecimalsonaNumberLineLessThanGreaterThanVideosActivity3090840 ◀ Safe Link NUMBEROCK DIGITAL LIBRARY: https://www.teacherspayteachers.com/Product/MathWorksheetsMoreNUM

08:33
Derangements  Numberphile
/ 74 viewsDerangements featuring Dr James Grime. More links & stuff in full description below ↓↓↓ Extra footage from this interview: https://youtu.be/qYAWjIVY7Zw More Dr Grime on Numberphile: http://bit.ly/grimevideos e video: https://youtu.be/AuA2EAgAegE Special t

05:02
The Kolakoski Sequence  Numberphile
/ 35 viewsThanks Squarespace: https://www.squarespace.com/numberphile More links & stuff in full description below ↓↓↓ Full length colouring video: https://youtu.be/a6oOVdU7Oo Alex Bellos books (including colouring books): http://bit.ly/BellosBooks Colouring by Ti

09:27
Large Gaps between Primes  Numberphile
/ 28 viewsJames Maynard on discoveries about large gaps between prime numbers. More links & stuff in full description below ↓↓↓ More Maynard videos: http://bit.ly/JamesMaynard Prime Playlist: http://bit.ly/primevids The 20 August paper: https://arxiv.org/abs/1408.4

11:30
4D MONKEY DUST
/ 44 viewsHenry Segerman shows us shadows (and dust) from the fourth dimension! More links & stuff in full description below ↓↓↓ Dr Segerman is an assistant professor in the Department of Mathematics at Oklahoma State University. More Numberphile with him: http://b

04:01
Can you find the next number in this sequence?  Alex Gendler
/ 120 viewsView full lesson: http://ed.ted.com/lessons/canyoufindthenextnumberinthissequencealexgendler 1, 11, 21, 1211, 111221. These are the first five elements of a number sequence. Can you figure out what comes next? Alex Gendler reveals the answer and

03:06
6 Times Table Song Rap  Skip Counting by 6  NUMBEROCK REMIX!
/ 126 views1.Multiplication Facts Flashcards, Games, & More Here!: https://www.teacherspayteachers.com/Product/SkipCountingBy6timestablesforkids4thGradeMathHelpMathsMultiplicationTablespowerdotmaths2721314 ◀ Safe Link 2. Buy our eBook Lesson and

02:10
Prime Numbers Song with Composite & Square Numbers  Math Rap for Kids
/ 88 viewsNUMBEROCK DIGITAL LIBRARY: https://www.teacherspayteachers.com/Product/MathWorksheetsMoreNUMBEROCKMusicalMathWorkbookandActivities2200780 ◀ Safe Link NUMBEROCK DVD Links Below: NUMBEROCK 3rd Grade Math DVD: https://www.amazon.com/NUMBEROCK3rdGr

02:49
Integers Song: Adding and Subtracting with Absolute Value
/ 114 viewsVIDEO'S LESSON PLAN: https://www.teacherspayteachers.com/Product/IntroductiontoIntegersMultimediaBundleGameVideoandActivities3187436 ◀ Safe Link NUMBEROCK DIGITAL LIBRARY: https://www.teacherspayteachers.com/Product/MathWorksheetsMoreNUMBEROCK

07:16
Derivative as a concept
/ 68 viewsIntroduction to the idea of a derivative as instantaneous rate of change or the slope of the tangent line.

09:58
How many particles in the Universe?  Numberphile
/ 93 viewsSponsored by Skillshare... 2months free to first 500 people: http://www.skl.sh/Numberphile More links & stuff in full description below ↓↓↓ This video features Dr Tony Padilla from the University of Nottingham. Extra bit from this video: https://youtu.be

13:53
Math vs Physics  Numberphile
/ 86 viewsRobbert Dijkgraaf is a mathematical physicist. Extra footage from this interview: https://youtu.be/FpkvNJCVEUA More links & stuff in full description below ↓↓↓ Robbert Dijkgraaf website: http://www.robbertdijkgraaf.com Physics videos by Brady (who makes N

03:38
A Quick Cake Conundrum  Numberphile
/ 80 viewsA quick little problem from Cliff Stoll, who baked a birthday cake for Brady... More links & stuff in full description below ↓↓↓ See more Cliff videos: http://bit.ly/Cliff_Videos The scientific way to cut a cake... https://youtu.be/wBU9N35ZHIw Numberphile

05:09
13532385396179  Numberphile
/ 69 viewsA number which could earn its "finder" a $1000 prize. More links & stuff in full description below ↓↓↓ John Conway videos: http://bit.ly/ConwayNumberphile Read more at: http://gladhoboexpress.blogspot.co.uk/2017/06/whatssospecialabout13532385396179.ht

04:10
How to spot a misleading graph  Lea Gaslowitz
/ 63 viewsView full lesson: http://ed.ted.com/lessons/howtospotamisleadinggraphleagaslowitz When they’re used well, graphs can help us intuitively grasp complex data. But as visual software has enabled more usage of graphs throughout all media, it has also m

09:25
How Long Would It Take to Count to a Billion and What’s the Highest Anyone Has Counted?
/ 44 viewsIf you happen to like our videos and have a few bucks to spare to support our efforts, check out our Patreon page where we've got a variety of perks for our Patrons, including Simon's voice on your GPS and the ever requested Simon Whistler whistling packa

07:07
How fast is a Fidget Spinner?
/ 124 viewsUse some mathematics to work out how fast a Fidget Spinner spins. In fidgets/second. Maths and science teachers: please do torment your students with this experiment. All they need is a Fidget Spinner and a phone; the two things they refuse to be without.
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04:50
Can you solve the fish riddle?  Steve Wyborney
/ 358 viewsView full lesson: http://ed.ted.com/lessons/canyousolvethefishriddlestevewyborney As the cargo director on the maiden voyage of the S.S. Buoyant, you’ve agreed to transport several tanks containing the last specimens of an endangered fish species t
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04:33
Can Math Prove God's Existence?
/ 168 viewsCan math stop the debate over God's Existence? Get a FREE Audible Trial: http://audible.com/asap GET THE ASAPSCIENCE BOOK: http://asapscience.com/book/ Created by: Mitchell Moffit and Gregory Brown Written by: Mitchell Moffit, Gregory Brown and Rachel Sal

03:40
A Nice Square  Numberphile
/ 61 viewsExtra footage from our Squared Squares video: https://youtu.be/NoRjwZomUK0 More links & stuff in full description below ↓↓↓ Check out http://www.squaring.net for loads of great info. Nice Square merchandise US: https://teespring.com/nicesquareus EU: htt

10:13
Squared Squares  Numberphile
/ 58 viewsFeaturing Dr James Grime. More links & stuff in full description below ↓↓↓ Extra footage from this interview: https://youtu.be/I0peG_kRE4 Blog post about the old photo: http://www.bradyharanblog.com/blog/thesquaredsquare Check out http://www.squaring.n

06:35
210 is VERY Goldbachy  Numberphile
/ 61 viewsCarl Pomerance discusses 210 and its special relationship with Goldbach's Conjecture. More links & stuff in full description below ↓↓↓ Goldbach's Conjecture: https://youtu.be/MxiTG96QOxw The paper discussed in this video: https://math.dartmouth.edu/~carlp

03:44
The Train Bird Problem: What's Your Approach?
/ 78 viewsThe Rest Of Us on Patreon: https://www.patreon.com/TheRestOfUs The Rest Of Us on Twitter: http://twitter.com/TROUchannel The Rest Of Us TShirts and More: http://teespring.com/TheRestOfUsClothing

04:17
How volume changes from changing dimensions
/ 67 viewsHow volume changes from changing dimensions

03:41
Example finding distance with Pythagorean theorem
/ 59 viewsExample finding distance with Pythagorean theorem

04:32
Rounding to the nearest tenth and hundredth
/ 83 viewsRounding to the nearest tenth and hundredth

03:37
Chinese Numbers 1 to 100 Song For Kids  中文數字 1 到 100  歌為孩子  Mandarin
/ 74 viewsLearn how to count in Chinese with cartoon animals in this catchy song!  學中文數字 Song Summary: Gerbils, bunnies and other friendly animals dance with big numbers and make learning Chinese numbers easy! 雪橇，兔子和其他友好的動物大量跳舞，使學習變得容易！ Lyrics in Chinese  歌詞中文 Ch

03:37
French Numbers Song 1100  Nombres en Français Chanson: Compter jusqu'à 100
/ 107 viewsLearn to count to 100 in French with this catchy song. for kids. Apprendre les chiffres en s'amusant (francais). SOMMAIRE DE LA CHANSON Ralphy le lapin obtient son ami Gerald le Gerbil, pour sortir une partie en journée ensoleillée alors que comptent 100

03:37
Counting in Spanish Numbers  Song for Kids  Números Para Niños En Español
/ 134 viewsCounting in Spanish Song 1100: Los Numeros Del 1 al 100 en Cancion Song Summary: Ralphy the rabbit gets his friend Gerald the Gerbil, to come out an play on a sunny day while they count 100 in the clouds while dancing with all of their friends! Come alon

13:53
Gödel's Incompleteness Theorem  Numberphile
/ 43 viewsMarcus du Sautoy discusses Gödel's Incompleteness Theorem More links & stuff in full description below ↓↓↓ Extra Footage Part One: https://youtu.be/mccoBBf0VDM Extra Footage Part Two: https://youtu.be/7DtzChPqUAw Professor du Sautoy is Simonyi Professor f

09:59
Goldbach Conjecture  Numberphile
/ 53 viewsProfessor David Eisenbud on the famed Goldbach Conjecture. More links & stuff in full description below ↓↓↓ Extra footage from this interview: https://youtu.be/7DYKPMWULA Prime Playlist: http://bit.ly/primevids Prime Number Theorem: https://youtu.be/l8ez

00:36
How to create chocolate out of nothing
/ 76 viewsDiscover my other interactive magic here: http://www.marianotomatis.com Wanna solve world hunger with magic? This video will teach you how to create chocolate out of nothing. Here the cyclic GIF: http://www.marianotomatis.it/blog/images/20130409a.gif To u

05:35
Genius Human Calculator Trick  JUNK DRAWER MAGIC
/ 187 viewsToday's Trick Magically add or subtract any set of numbers! → Credits ← Hosts: Akira Sky Walker Satterwhite Created by Stu Stone & Jesse Feinberg Directed by Shane Spiegel & Justin Reager Written by Shane Spiegel & Justin Reager Executive Producer Judy M
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07:16
Binary  How to Make a Computer: Part II
/ 78 viewsThis is Part II of How to Make a Computer. In this series, I'm going to be explaining how to build a computer from the ground up. Using 19th Century technology, you'll discover the inner workings of the most important thing in your life. This episode: bin

03:16
I WILL GUESS YOUR AGE IN ONE MINUTE
/ 662 viewsTechZone ► https://www.youtube.com/channel/UC6H07z6zAwbHRl4Lbl0GSsw Today we have prepared a really interesting video for all our fans out there. We are gonna show some great mathematical tricks and at the same time we are gonna guess any number you choos
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22:41
Calculating the optimal sphere packing density: with oranges
/ 66 viewsCheck out the corresponding video I made with Steve Mould for his channel. https://youtu.be/O3RsDIWB7s0 Thomas Hales’s proof of the Kepler Conjecture. http://annals.math.princeton.edu/wpcontent/uploads/annalsv162n3p01.pdf The Kepler Conjecture on wiki

19:53
Calculus at a Fifth Grade Level
/ 75 viewsThe foreign concepts of calculus often make it hard to jump right into learning it. If you ever wanted to dive into the world of mathematics  or if you are just having difficulty in your calculus class  and are having a hard time grasping the ideas, you

03:38
Counting to 100 With BIG Numbers Song for Kids  Kindergarten, 1st Grade
/ 235 viewsSave 70% on all our lessons by buying complete video and lesson library: https://www.teacherspayteachers.com/Product/MathWorksheetsMoreNUMBEROCKMusicalMathWorkbookandActivities2200780 ◀ Safe Link NUMBEROCK DVD Links Below: NUMBEROCK 3rd Grade Mat

10:24
Alphamagic vs Letterwise Magic Squares
/ 77 viewsBehold! Another slightly disappointing magic square. Free tickets for my patreon supporters! https://www.patreon.com/posts/freeticketsto9603456 PreOrder the DVD/download: https://shop.festivalofthespokennerd.com/collections/frontpage/products/58b6b63a

05:07
Check your intuition: The birthday problem  David Knuffke
/ 179 viewsView full lesson: http://ed.ted.com/lessons/checkyourintuitionthebirthdayproblemdavidknuffke Imagine a group of people. How big do you think the group would have to be before there’s more than a 50% chance that two people in the group have the same
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12:55
Math Antics  The Pythagorean Theorem
/ 148 viewsLearn more at mathantics.com Visit http://www.mathantics.com for more Free math videos and additional subscription based content!
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05:24
Can you solve the pirate riddle?  Alex Gendler
/ 503 viewsView full lesson: http://ed.ted.com/lessons/canyousolvethepirateriddlealexgendler It’s a good day to be a pirate. Amaro and his four mateys – Bart, Charlotte, Daniel, and Eliza have struck gold – a chest with 100 coins. But now, they must divvy up
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04:22
Learn to Draw Dotted Lines on a Chalkboard  Learn Quick
/ 93 viewsIn this episode of Learn Quick I learn to draw lines on a chalk board like the great MIT lecturer Walter Lewin. Subscribe for more Learn Quick Videos: http://bit.ly/2bR4nIH If you enjoy this content and felt I've earned it, please consider pledging a litt

04:20
Cool Math! "This Old Man"  Behind the Music
/ 85 viewsIt's time for cool math for kids at Cool School with "This Old Man!" Learn to count with this fun nursery rhyme and a super awesome math song by Mr. R! Here's Mr. R's version of "This Old Man" where you can learn to count by tens! https://www.youtube.com/

04:22
Calculus Limits  Factoring Example
/ 78 viewsLearning Calculus limits is a breeze with this tutorial and video example.. This example teaches you how to solve limits by factoring. Check out my Calculus limits playlist if you want some harder examples. I also offer live tutoring if you need any extra

03:48
Less Than Greater Than Song for Kids  Comparing Numbers by Place Value
/ 301 viewsSave 70% on all our lessons by buying complete video and lesson library: https://www.teacherspayteachers.com/Product/MathWorksheetsMoreNUMBEROCKMusicalMathWorkbookandActivities2200780 ◀ Safe Link NUMBEROCK DVD Links Below: NUMBEROCK 3rd Grade Mat

01:50
A mathematician explains infinity
/ 101 viewsInfinity is an elusive concept that can often be difficult to comprehend. In order to better define what infinity actually is, we brought in Eugenia Cheng, a mathematician and the author of "Beyond Infinity." Read more: http://www.businessinsider.com/sai
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17:42
Twin Prime Conjecture  Numberphile
/ 63 viewsDr James Maynard is a leading figure in recent progress on the Twin Prime Conjecture. More links and stuff below ↓↓↓ More Twin Primes from Numberphile: https://youtu.be/vkMXdShDdtY and https://youtu.be/D4_sNKoORA Prime Number Playlist: http://bit.ly/prim

03:30
Reflected Cats  Numberphile
/ 90 viewsYes, it's a cat video on YouTube. More videos with Tadashi Tokieda at: http://bit.ly/tadashi_vids Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are also supported by Science Sandbox, a Si

13:00
The Moving Sofa Problem  Numberphile
/ 77 viewsFeaturing Dan Romik from UC Davis. More footage from this interview soon on Numberphile2. Dan's comprehensive page on this topic: http://bit.ly/movingsofa Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRIN

14:18
The Four Color Map Theorem  Numberphile
/ 60 viewsThis video supported by Squarespace: https://www.squarespace.com/numberphile The Four Color Map Theorem (or colour!?) was a longstanding problem until it was cracked in 1976 using a "new" method... computers! A little bit of extra footage from this: http

10:57
The World's Best Mathematician  Numberphile
/ 59 views(*) Among current mathematicians, many people regard Professor Tao as the world's finest... Opinions on such things vary, of course. Professor Tao kindly fielded some of our questions, including many submitted by Numberphile viewers. EXTRA FOOTAGE: https:

12:33
Pascal's Triangle  Numberphile
/ 71 viewsJust a few fun properties of Pascal's Triangle  discussed by Casandra Monroe, undergraduate math major at Princeton University. Filmed during the MSRIUP summer program. Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): htt

07:25
Stable Rollers  Numberphile
/ 52 viewsTadashi Tokieda is back. This time talking about stability, instability and train wheels. More Tadashi videos: http://bit.ly/tadashi_vids Numberphile is supported by the Mathematical Sciences Research Institute (MSRI): http://bit.ly/MSRINumberphile We are

04:30
Calculus Limits  Easy Problem and Introduction
/ 87 viewsLearning Calculus limits is a breeze with this problem and introduction. This example is an easy problem. Check out my Calculus limits playlist if you want some harder examples. I also offer live tutoring if you need any extra help. Check out my website i

04:32
Math Word problems  Solving triangles
/ 109 viewsBecome an expert in solving math word problems! In this problem you will learn how to use triangles to solve the height of a building. A man steps back 50 feet which the angle to the top of the building change 15 degrees. Using this information find the h

05:04
Area of a Triangle  Fun challenging math problem
/ 165 viewsCan you solve the area of a triangle given points X and Y. This is not a basic problem, but it is a fun and challenging math problem. See if you are smart enough to find the area of a triangle for yourself. My name is Chris and my passion is to teach math

03:13
Skip Counting by 2 Song for Kids  Multiples of 2 by NUMBEROCK
/ 116 viewsCheck our our Complete Lesson and Video Library: https://www.teacherspayteachers.com/Product/NUMBEROCKMusicalMathWorkbookandActivitiesTheCompleteLibrarycountingby5'ssongforkindergartenscratchgarden2200780 ◀ Safe Link DVD LINK BELOW NUMBER

05:13
Can you solve the virus riddle?  Lisa Winer
/ 302 viewsView full lesson: http://ed.ted.com/lessons/canyousolvethevirusriddlelisawiner Your research team has found a prehistoric virus preserved in the permafrost and isolated it for study. After a late night working, you’re just closing up the lab when a

08:18
Musical fractals
/ 64 viewsBe sure to check out my video on HARMONIC POLYRHYTHMS to better understand why this crazy illusion works! https://www.youtube.com/watch?v=_gCJHNBEdoc SUPPORT ME ON PATREON: http://www.patreon.com/adamneely Follow me on the interwebs: http://www.facebook.c

01:52
How to Solve a Rubik's Cube  FullTime Kid  PBS Parents
/ 135 viewsWatch Mya [unofficially] break the world record for solving a Rubik's cube, blindfolded! You won't REALLY learn how to solve the puzzle , but you'll learn a neat trick to show your friends and family. Executive Producer: Danielle Steinberg Meet Mya! She'

04:37
Why do people get so anxious about math?  Orly Rubinsten
/ 245 viewsView full lesson: http://ed.ted.com/lessons/whydopeoplegetsoanxiousaboutmathorlyrubinsten Have you ever sat down to take a math test and immediately felt your heart beat faster and your palms start to sweat? This is called math anxiety, and if it
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03:41
Polygons Song For Kids Rap Video: Geometry Quadrilaterals Hexagons etc.
/ 153 viewsFull lesson plan and more: http://numberock.com/polygons/ Description: Alan kite surfs, skateboards, bikes, dives, and explores space as he learns about Triangles, Quadrilaterals, Pentagons, Hexagons, Heptagons, Octagons, Nonagons, and Decagons. These sha

06:11
The Brick Balancing Challenge
/ 54 viewsHow far can you make a tower lean? Bricks optional. Lowermass cuboids should work just as well. Previous brick video: The Brick DoubleDomino Effect Explained https://www.youtube.com/watch?v=EYkBctqyKic Try to keep the comments spoiler free! But I do not