2012-11-29 | The fiscal cliff | American civics | US government and civics | Khan Academy | 12:02 | 146,100 | |
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2012-11-28 | Chain Rule Challenge Announcement | 1:13 | 6,041 | |
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2012-11-28 | Sample standard deviation and bias | Probability and Statistics | Khan Academy | 9:32 | 310,034 | |
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2012-11-28 | Population standard deviation | Descriptive statistics | Probability and Statistics | Khan Academy | 8:05 | 318,825 | |
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2012-11-28 | Another Pythagorean theorem proof | Right triangles and trigonometry | Geometry | Khan Academy | 10:23 | 86,435 | |
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2012-11-28 | Bhaskara's proof of the Pythagorean theorem | Geometry | Khan Academy | 9:03 | 178,286 | |
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2012-11-27 | Garfield's proof of the Pythagorean theorem | Geometry | Khan Academy | 8:56 | 270,952 | |
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2012-11-27 | Accretion Disk Challenge Announcement | 1:59 | 3,352 | |
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2012-11-27 | Another simulation giving evidence that (n-1) gives us an unbiased estimate of variance | 4:46 | 110,798 | |
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2012-11-26 | Simulation providing evidence that (n-1) gives us unbiased estimate | Khan Academy | 4:30 | 73,019 | |
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2012-11-26 | Simulation showing bias in sample variance | Probability and Statistics | Khan Academy | 6:24 | 120,859 | Show |
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2012-11-21 | Challenge Announcement: Statistics Simulation | 2:16 | 5,856 | |
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2012-11-21 | Overview of Khan Academy statistics | 1:36 | 28,920 | |
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2012-11-21 | Illinois pension obligations | American civics | US government and civics | Khan Academy | 7:30 | 65,569 | |
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2012-11-21 | Pension obligations | American civics | US government and civics | Khan Academy | 10:07 | 51,309 | |
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2012-11-21 | Review and intuition why we divide by n-1 for the unbiased sample | Khan Academy | 9:44 | 337,825 | |
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2012-11-21 | Sample variance | Descriptive statistics | Probability and Statistics | Khan Academy | 10:38 | 381,453 | |
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2012-11-20 | Variance of a population | Descriptive statistics | Probability and Statistics | Khan Academy | 8:05 | 391,090 | |
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2012-11-20 | Inferring population mean from sample mean | Probability and Statistics | Khan Academy | 10:03 | 374,132 | |
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2012-11-19 | Introduction to the unit circle | Trigonometry | Khan Academy | 9:04 | 1,704,626 | |
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2012-11-19 | Radian and degree conversion practice | Trigonometry | Khan Academy | 7:11 | 679,972 | |
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2012-11-19 | Introduction to radians | Unit circle definition of trig functions | Trigonometry | Khan Academy | 10:51 | 1,226,001 | |
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2012-11-16 | Statistics intro: Mean, median, and mode | Data and statistics | 6th grade | Khan Academy | 8:54 | 2,526,240 | |
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2012-11-16 | Sal's interview on the One World Schoolhouse (C-SPAN 2 After Words) | 52:45 | 11,294 | |
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2012-10-31 | Analyzing solutions to linear systems graphically 2 | Algebra II | Khan Academy | 6:36 | 169,283 | |
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2012-10-31 | Infinite solutions to systems | Systems of equations and inequalities | Algebra II | Khan Academy | 7:07 | 124,035 | |
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2012-10-31 | Inconsistent systems of equations | Algebra II | Khan Academy | 9:25 | 150,465 | |
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2012-10-31 | Solving systems of linear equations with substitution example | Algebra II | Khan Academy | 4:21 | 491,604 | |
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2012-10-31 | Talking bird solves systems with substitution | Algebra II | Khan Academy | 5:21 | 280,421 | |
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2012-10-30 | Systems with elimination practice | Algebra II | Khan Academy | 5:31 | 124,843 | |
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2012-10-30 | Radio Interview: Sal Khan on Diane Rehm (Oct 3, 2012) | 50:56 | 5,905 | |
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2012-10-30 | Radio Interview: Sal Khan on NPR's Talk of the Nation (October 23, 2012) | 16:54 | 5,524 | |
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2012-10-30 | Radio Interview: Sal Khan on Brian Lehrer (Oct 4, 2012) | 14:06 | 4,190 | |
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2012-10-30 | Sal Khan on CNN Starting Point (Oct 5, 2012) | 3:44 | 27,708 | |
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2012-10-30 | Sal Khan on Piers Morgan Tonight (Oct 5, 2012) | 1:39 | 30,882 | |
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2012-10-30 | How many bags of potato chips do people eat? | Algebra II | Khan Academy | 9:21 | 228,594 | |
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2012-10-29 | Solving systems of linear equations with elimination example 1 | Algebra II | Khan Academy | 4:18 | 238,741 | |
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2012-10-29 | King's cupcakes: Solving systems by elimination | Algebra II | Khan Academy | 9:00 | 334,031 | |
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2012-10-29 | Solving systems of equations graphically | Algebra II | Khan Academy | 2:22 | 731,368 | |
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2012-10-24 | Khan Academy in Idaho | 2:55 | 13,722 | |
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2012-10-23 | Sal on AirTalk talking about his new book | 17:02 | 78,447 | |
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2012-10-19 | Solving the troll riddle visually | Algebra II | Khan Academy | 5:41 | 397,728 | |
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2012-10-19 | Trolls, tolls, and systems of equations | Algebra II | Khan Academy | 6:51 | 682,045 | |
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2012-10-11 | Hundred days and Waterloo | World history | Khan Academy | 7:33 | 71,887 | |
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2012-10-10 | Upcoming Google Hangout with Sal about The One World Schoolhouse | 1:17 | 16,329 | |
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2012-10-08 | Transfer pricing and tax havens | Taxes | Finance & Capital Markets | Khan Academy | 6:47 | 354,809 | |
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2012-09-28 | Monte Carlo Simulation to Answer LeBron's Question | 8:11 | 130,050 | |
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2012-09-11 | Solving for the weight of a bunny | 3:11 | 15,888 | |
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2012-09-11 | Solving equations with multiplication | 4:03 | 15,143 | |
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2012-09-11 | How to solve one-step equations | Linear equations | Algebra I | Khan Academy | 2:09 | 1,019,144 | Tutorial |
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2012-09-11 | How to use the one-step equation intuition exercise | Linear equations | Algebra I | Khan Academy | 1:51 | 410,110 | Tutorial |
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2012-09-11 | What is blood pressure? | 6:21 | 162,684 | |
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2012-09-11 | Using a stethoscope to determine blood pressure | 5:27 | 49,512 | |
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2012-09-11 | Categories of hypertension | 7:09 | 7,562 | |
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2012-09-11 | Resistance in a tube | 8:53 | 2,753 | |
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2012-09-11 | Pressure, flow, and resistance in the human body | 11:50 | 74,280 | |
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2012-09-11 | Adding resistance in series and parallel in a human body | 10:33 | 5,793 | |
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2012-09-11 | Low sodium diet | 6:49 | 15,321 | |
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2012-09-11 | Spotting salty foods | 6:00 | 5,482 | |
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2012-09-11 | Body Mass Index | 7:21 | 46,100 | |
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2012-09-11 | Hypertension categories and symptoms | 8:26 | 8,299 | |
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2012-09-10 | Hypertension effects on the heart | 7:19 | 7,851 | |
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2012-09-10 | Lifestyle changes for managing hypertension | 6:35 | 4,017 | |
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2012-09-10 | 11 major muscle groups | 4:21 | 222,391 | |
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2012-09-10 | Basics of an exercise routine | 10:11 | 22,352 | |
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2012-09-10 | Arteries versus Veins | 11:09 | 15,863 | |
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2012-09-10 | Layers of a blood vessel | 10:11 | 22,944 | |
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2012-09-10 | Arteriosclerosis, Arteriolosclerosis, and Atherosclerosis | 9:18 | 34,113 | |
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2012-09-10 | Adding resistance across blood vessels problem | 3:22 | 5,827 | |
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2012-09-10 | Blood pressure changes over time | 11:25 | 2,080 | |
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2012-09-10 | Hypertension effects on the blood vessels | 7:09 | 4,254 | |
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2012-09-10 | Autoregulation - Baroreceptors | 12:09 | 47,107 | |
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2012-09-10 | Atherosclerosis - Part 1 | 12:54 | 77,572 | |
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2012-09-10 | Atherosclerosis - Part 2 | 8:59 | 38,989 | |
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2012-09-07 | How to simplify an expression by combining like terms and the distributive property | Khan Academy | 4:07 | 1,754,164 | Tutorial |
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2012-09-06 | Combining like terms introduction | Introduction to algebra | Algebra I | Khan Academy | 4:32 | 1,676,171 | |
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2012-09-06 | Expressions with two variables | Introduction to algebra | Algebra I | Khan Academy | 1:59 | 478,046 | |
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2012-09-06 | Why aren't we using the multiplication sign? | Introduction to algebra | Algebra I | Khan Academy | 4:58 | 886,469 | |
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2012-09-04 | What is a variable? | Introduction to algebra | Algebra I | Khan Academy | 3:18 | 1,729,539 | |
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2012-09-04 | LeBron asks about comparing Earth's history to a basketball game | 8:08 | 96,279 | |
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2012-09-04 | LeBron asks about Newton's 3rd Law | 4:01 | 142,178 | |
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2012-09-04 | LeBron Asks: What muscles do we use when shooting a basket? | 3:15 | 273,932 | |
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2012-09-04 | LeBron Asks: Why does humidity make it feel hotter? | 6:34 | 74,578 | |
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2012-09-04 | LeBron Asks: Why does sweating cool you down? | NCLEX-RN | Khan Academy | 5:40 | 203,075 | |
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2012-08-31 | Projectile and Orbital Motion | 6:00 | 15,442 | |
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2012-08-31 | Overview of KhanAcademy.org | 5:26 | 269,393 | |
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2012-08-30 | Why is this art? Andy Warhol, Campbell's Soup Cans | Art History | Khan Academy | 7:09 | 297,693 | |
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2012-08-24 | Pendulum Simulation Project | 5:01 | 22,852 | |
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2012-08-17 | Modeling Projectile Motion | 11:00 | 26,114 | |
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2012-08-14 | Khan Academy Computer Science Launch | 8:36 | 157,534 | |
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2012-08-13 | Unit circle manipulative | Unit circle definition of trig functions | Trigonometry | Khan Academy | 4:12 | 160,031 | |
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2012-08-13 | Exploring the mean and median | Descriptive statistics | Probability and Statistics | Khan Academy | 5:26 | 288,204 | |
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2012-08-13 | Exploring standard deviation 1 module | Probability and Statistics | Khan Academy | 3:58 | 87,143 | |
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2012-08-08 | Why Sweating Cools You Down | 4:29 | 46,292 | |
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2012-08-07 | Fill-in-the-blank triangle proofs example 2 | 6:39 | 14,694 | |
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2012-08-07 | Wrong statements in proofs example 1 | 2:48 | 12,956 | |
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2012-08-06 | Fill-in-the-blank triangle proofs example 1 | 9:42 | 25,059 | |
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2012-08-06 | Basic Triangle Proofs Module Example 2 | 2:53 | 21,991 | |
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2012-08-06 | Basic Triangle Proofs Module Example | 1:57 | 46,176 | |
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2012-08-03 | Khan Academy Vision | 7:34 | 71,622 | |
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