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Khan Academy - New and Noteworthy 1-48

Back-to-school fireside chat with Sal Khan
Back-to-school fireside chat with Sal KhanJoin Sal Khan for a back-to-school fireside chat to start the school year and kickoff LearnStorm, a free six-week challenge to help students start the school year with the skills and mindsets they need. S…
- 13 Sep 17, 3:25pm -
Khan Academy LearnStorm - Growth Mindset Livestream
Khan Academy LearnStorm - Growth Mindset LivestreamDo your students say things like “I’m just not a math person” or “Writing just isn’t my thing”? Tune in to our free growth mindset livestream to find out how you can use LearnStorm’…
- 30 Aug 17, 7:09pm -
Students, get started with LearnStorm
Students, get started with LearnStormWelcome to LearnStorm! LearnStorm is a free, six-week learning challenge from Khan Academy that celebrates learning and hard work at back to school. Check out www.learnstorm2017.org to find out more.LearnSto…
- 15 Aug 17, 4:18pm -
Teachers, get started with LearnStorm
Teachers, get started with LearnStormLearnStorm is a free, six-week challenge to start the school year strong. By working as a class on Khan Academy, students develop the skills and learning mindsets they need for a successful school year while h…
- 15 Aug 17, 4:18pm -
Better Takes Practice: The Full Story - Official SAT Practice on Khan Academy
Better Takes Practice: The Full Story - Official SAT Practice on Khan AcademyFrom:Khan AcademyViews:12037 239ratingsTime:02:48More inEducation
- 29 Jun 17, 3:31am -
Better Takes Practice: Cameron - Official SAT Practice on Khan Academy
Better Takes Practice: Cameron - Official SAT Practice on Khan AcademyReal students. Real progress. Meet the students at Oak Ridge High School in Orlando, Florida who understand the power of practice.Get ready for the SAT with Official SAT Prac…
- 29 Jun 17, 3:30am -
Better Takes Practice: Azulaye - Official SAT Practice on Khan Academy
Better Takes Practice: Azulaye - Official SAT Practice on Khan AcademyReal students. Real progress. Meet the students at Oak Ridge High School in Orlando, Florida who understand the power of practice.Get ready for the SAT with Official SAT Prac…
- 29 Jun 17, 3:28am -
Better Takes Practice: Diana - Official SAT Practice on Khan Academy
Better Takes Practice: Diana - Official SAT Practice on Khan AcademyReal students. Real progress. Meet the students at Oak Ridge High School in Orlando, Florida who understand the power of practice.Get ready for the SAT with Official SAT Practi…
- 29 Jun 17, 3:28am -
Better Takes Practice: Gillian - Official SAT Practice on Khan Academy
Better Takes Practice: Gillian - Official SAT Practice on Khan AcademyReal students. Real progress. Meet the students at Oak Ridge High School in Orlando, Florida who understand the power of practice.Get ready for the SAT with Official SAT Prac…
- 29 Jun 17, 3:27am -
Better Takes Practice: Ian - Official SAT Practice on Khan Academy
Better Takes Practice: Ian - Official SAT Practice on Khan AcademyReal students. Real progress. Meet the students at Oak Ridge High School in Orlando, Florida who understand the power of practice.Get ready for the SAT with Official SAT Practice…
- 28 Jun 17, 10:18pm -
Title: Better Takes Practice: D'Andre - Official SAT Practice on Khan Academy
Title: Better Takes Practice: D'Andre - Official SAT Practice on Khan AcademyReal students. Real progress. Meet the students at Oak Ridge High School in Orlando, Florida who understand the power of practice.Get ready for the SAT with Official S…
- 28 Jun 17, 9:56pm -
Better Takes Practice - Official SAT Practice on Khan Academy
Better Takes Practice - Official SAT Practice on Khan AcademyReal students. Real progress. Meet the students at Oak Ridge High School in Orlando, Florida who understand the power of practice.Get ready for the SAT with Official SAT Practice on K…
- 28 Jun 17, 8:47pm -
This school year may be ending but we have lots to do for next year.
This school year may be ending but we have lots to do for next year.Help us raise $1 million in three days! Your donation will help us develop free personalized learning materials that empower students and teachers for another successful school…
- 5 Jun 17, 4:28pm -
Khan Academy Live: SAT Writing
Khan Academy Live: SAT WritingNeed help with SAT writing? Join Eric, one of Khan Academy’s SAT experts, for a live SAT writing class Tuesday, May 30 at 7 pm ET/4pm PT. It’s free! Eric will walk through key grammar concepts like subject-verb…
- 31 May 17, 4:07pm -
Khan Academy Live: SAT Reading (Hangouts on air)
Khan Academy Live: SAT Reading (Hangouts on air)Ready for the reading portion of the SAT? Sharpen your skills with Eric, one of Khan Academy’s SAT experts. He’ll host a live SAT reading class Tuesday, May 23 at 7 pm ET/4pm PT. During the sess…
- 24 May 17, 8:54pm -
Khan Academy Live: SAT Math
Khan Academy Live: SAT MathNeed help with SAT math? Join Eric, one of Khan Academy’s SAT experts, for an SAT math class. Eric reviews some of the most important math skills for the test and provides tips on how to avoid careless mistakes. This…
- 18 May 17, 6:56pm -
Khan Academy Live: AP US History
Khan Academy Live: AP US HistoryTaking AP US History? Prep for the AP exam with our free live tutoring session. Kim, our history expert, will share tips and strategies for the exam.Study for AP US History on Khan Academy:https://www.khanacadem…
- 2 May 17, 4:09pm -
Khan Academy Live: AP Calculus
Khan Academy Live: AP CalculusTaking AP Calculus? Prep for the exam with our free live tutoring session. Dave, one of our calculus experts, will review key concepts, solve sample questions, and share ways to avoid common mistakes.Prep for your…
- 28 Apr 17, 11:10pm -
Khan Academy Live: SAT Writing Class
Khan Academy Live: SAT Writing ClassNeed help with SAT writing? Join Eric, one of Khan Academy’s SAT experts, for an SAT writing class. Eric walks through key grammar concepts like subject-verb agreement and sentence punctuation. This is an edi…
- 11 Mar 17, 12:44am -
Khan Academy Live: SAT Reading Class
Khan Academy Live: SAT Reading ClassNeed help with SAT reading? Join Eric, one of Khan Academy’s SAT experts, for an SAT reading class. During class, Eric explains a proactive approach to answering reading questions and walks through some of th…
- 6 Mar 17, 7:16pm -
Sanskrit connections to English | World History | Khan Academy
Sanskrit connections to English | World History | Khan AcademyHow Sanskrit is connected to Latin, English and other European languages.Watch the next lesson: https://www.khanacademy.org/humanities/world-history/history-beginnings/ancient-india…
- 24 Feb 17, 6:12pm -
Khan Academy’s 100&Change proposal: World-class diplomas for anyone, anywhere
Khan Academy’s 100&Change proposal: World-class diplomas for anyone, anywhereKhan Academy is a nonprofit with a mission of providing a free, world-class education for anyone, anywhere. We’re entering a MacArthur Foundation competition, called…
- 1 Oct 16, 10:53pm -
The History of the Democratic Party
The History of the Democratic PartyThis week, as America's attention is focused on the Democratic National Convention in Philadelphia, we bring you a quick overview of the history of the Democratic Party. 200+ years was hard to fit into 16 minute…
- 28 Jul 16, 5:47pm -
Brexit and European Union primer
Brexit and European Union primerA primer on Brexit, the European Union and the Eurozone.From:Khan AcademyViews:136907 767ratingsTime:09:34More inEducation
- 15 Jul 16, 4:21pm -
The History of the Republican Party
The History of the Republican PartyHeading into the 2016 Republican National Convention, we thought it would be a good time to do a quick history of the GOP, from its origins before the Civil War through the elections of Lincoln, Eisenhower and R…
- 15 Jul 16, 4:21pm -
United Kingdom vs Great Britain vs England primer
United Kingdom vs Great Britain vs England primerA primer on the United Kingom vs Great Britain vs England.From:Khan AcademyViews:24663 334ratingsTime:02:48More inEducation
- 15 Jul 16, 4:21pm -
Khan Academy Talent Search 2016
Khan Academy Talent Search 2016Learn more and submit your videos: http://khanacademy.org/talentsearchKhan Academy and YouTube are looking for brilliant explainers whose videos help students succeed in school and find joy in learning.We’re l…
- 22 Jun 16, 4:34pm -
Tomorrow: AP US History Office Hours with Sal
Tomorrow: AP US History Office Hours with SalSign up here to join us for our LIVE AP US History review session!https://www.facebook.com/events/1176774719008139/?active_tab=postsGet ready for Friday's AP US History exam with Sal and Kim, our H…
- 3 May 16, 10:41pm -
Sal interviews the AP Calculus Lead at College Board
Sal interviews the AP Calculus Lead at College BoardAP Calculus lead, Ben Hedrick, talks about the design and tips for the AP Calculus exams.From:Khan AcademyViews:39310 191ratingsTime:09:57More inEducation
- 2 May 16, 4:51pm -
Confidence – Official SAT Practice on Khan Academy
Confidence – Official SAT Practice on Khan AcademyKhan Academy and the College Board have joined forces to bring you Official SAT Practice.http://khanacademy.org/satFrom:Khan AcademyViews:28439 736ratingsTime:00:58More inEducati…
- 2 May 16, 4:51pm -
Pixar in a Box | Welcome to Pixar in a Box | Khan Academy
Pixar in a Box | Welcome to Pixar in a Box | Khan AcademyWatch the next lesson: https://www.khanacademy.org/partner-content/pixar/effects/particle/v/effects-overview?utm_source=YT&utm_medium=Desc&utm_campaign=computeranimationComputer Animation…
- 28 Aug 15, 6:51pm -
Newton Leibniz and Usain Bolt
Newton Leibniz and Usain BoltWhy we study differential calculusMore free lessons at: http://www.khanacademy.org/video?v=EKvHQc3QEowAbout Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyo…
- 16 Feb 12, 9:26pm -
Abstract-ness | Introduction to algebra | Algebra I | Khan Academy
Abstract-ness | Introduction to algebra | Algebra I | Khan AcademyThe general idea behind the word 'abstract'Watch the next lesson: https://www.khanacademy.org/math/algebra/introduction-to-algebra/overview_hist_alg/v/the-beauty-of-algebra?utm_s…
- 10 Feb 12, 12:35am -
Origins of algebra | Introduction to algebra | Algebra I | Khan Academy
Origins of algebra | Introduction to algebra | Algebra I | Khan AcademyWhere did the word "Algebra" and its underlying ideas come from?Watch the next lesson: https://www.khanacademy.org/math/algebra/introduction-to-algebra/overview_hist_alg/v/a…
- 9 Feb 12, 8:27pm -
The beauty of algebra | Introduction to algebra | Algebra I | Khan Academy
The beauty of algebra | Introduction to algebra | Algebra I | Khan AcademyWhy the abstraction of mathematics is so fundamentalWatch the next lesson: https://www.khanacademy.org/math/algebra/introduction-to-algebra/overview_hist_alg/v/descartes-…
- 9 Feb 12, 6:35pm -
Thomas Malthus and population growth | Cosmology & Astronomy | Khan Academy
Thomas Malthus and population growth | Cosmology & Astronomy | Khan AcademyThomas Malthus's views on population. Malthusian limits. Created by Sal Khan.Watch the next lesson: https://www.khanacademy.org/science/cosmology-and-astronomy/life-eart…
- 19 Jan 12, 12:29am -
Inferior goods clarificationx
Inferior goods clarificationxMore clarification on inferior and normal goodsWatch the next lesson: https://www.khanacademy.org/economics-finance-domain/microeconomics/supply-demand-equilibrium/supply-curve-tutorial/v/law-of-supply?utm_source=YT…
- 19 Jan 12, 12:29am -
Economic profit vs accounting profit | Microeconomics | Khan Academy
Economic profit vs accounting profit | Microeconomics | Khan AcademyDifference between a firm's accounting and economic profitWatch the next lesson: https://www.khanacademy.org/economics-finance-domain/microeconomics/firm-economic-profit/econom…
- 19 Jan 12, 12:28am -
SOPA and PIPA | American civics | US History | Khan Academy
SOPA and PIPA | American civics | US History | Khan AcademyWhat SOPA and PIPA are at face value and what they could end up enabling. Created by Sal Khan.Watch the next lesson: https://www.khanacademy.org/humanities/us-history/american-civics-pa…
- 18 Jan 12, 8:24pm -
The golden ratio | Introduction to Euclidean geometry | Geometry | Khan Academy
The golden ratio | Introduction to Euclidean geometry | Geometry | Khan AcademyAn introduction to one of the most amazing ideas/numbers in mathematicsWatch the next lesson: https://www.khanacademy.org/math/geometry/parallel-and-perpendicular-li…
- 5 Oct 11, 2:25pm -
Systemic thinking about cancer | Miscellaneous | Heatlh & Medicine | Khan Academy
Systemic thinking about cancer | Miscellaneous | Heatlh & Medicine | Khan AcademyDr. David Agus discusses thinking systemically about cancer and other things. Created by Sal Khan.Watch the next lesson: https://www.khanacademy.org/science/health…
- 3 Oct 11, 11:38pm -
Vitamin C and the Limeys
Vitamin C and the LimeysSal and Dr. David Agus talk about the history of Scurvy and Vitamin CFrom:Khan AcademyViews:96949 506ratingsTime:07:22More inEducation
- 3 Oct 11, 11:38pm -
The Gates Notes: Teachers in Los Altos
The Gates Notes: Teachers in Los AltosTeachers in Los Altos School District share their experiences with Khan AcademyMore free lessons at: http://www.khanacademy.org/video?v=RoGgxrCsCEQFrom:Khan AcademyViews:44398 150ratingsTime:03:0…
- 2 Oct 11, 2:23pm -
Challenging perimeter problem | Perimeter, area, and volume | Geometry | Khan Academy
Challenging perimeter problem | Perimeter, area, and volume | Geometry | Khan AcademyPerimeter of rectangle covered by 9 non-overlapping squares. From 2000 American Invitational Math ExamWatch the next lesson: https://www.khanacademy.org/math/g…
- 2 Oct 11, 2:15pm -
Koch snowflake fractal | Perimeter, area, and volume | Geometry | Khan Academy
Koch snowflake fractal | Perimeter, area, and volume | Geometry | Khan AcademyA shape that has an infinite perimeter but finite areaWatch the next lesson: https://www.khanacademy.org/math/geometry/basic-geometry/koch_snowflake/v/area-of-an-equi…
- 2 Oct 11, 2:13pm -
Vi and Sal explore how we think about scale | Algebra II | Khan Academy
Vi and Sal explore how we think about scale | Algebra II | Khan AcademyVi Hart (http://www.youtube.com/vihart) and Sal talk about how we humans perceive things nonlinearlyWatch the next lesson: https://www.khanacademy.org/math/algebra2/exponent…
- 6 Sep 11, 1:21am -
Firestick farming | Life on earth and in the universe | Cosmology & Astronomy | Khan Academy
Firestick farming | Life on earth and in the universe | Cosmology & Astronomy | Khan AcademyHow the indigenous Australians used fire to change their environment. Created by Sal Khan.Watch the next lesson: https://www.khanacademy.org/science/cos…
- 6 Sep 11, 1:21am -
Logarithmic scale | Logarithms | Algebra II | Khan Academy
Logarithmic scale | Logarithms | Algebra II | Khan AcademyUnderstanding how logarithmic scale is different from linear scale and why it could be usefulWatch the next lesson: https://www.khanacademy.org/math/algebra2/logarithms-tutorial/logarith…
- 6 Sep 11, 1:20am -

Khan Academy - New and Noteworthy 49-71

Visualizing Taylor Series Approximations
Visualizing Taylor Series ApproximationsUsing Wolfram Alpha to approximate sin(x)More free lessons at: http://www.khanacademy.org/video?v=8dMLK2WueawFrom:Khan AcademyViews:227090 397ratingsTime:06:01More inEducation
- 2 Oct 11, 2:28pm -
Development of agriculture and writing | Cosmology & Astronomy | Khan Academy
Development of agriculture and writing | Cosmology & Astronomy | Khan AcademyThe Paleolithic and Neolithic eras of the Stone Age. Created by Sal Khan.Watch the next lesson: https://www.khanacademy.org/science/cosmology-and-astronomy/life-earth-…
- 2 Oct 11, 2:28pm -
Ideal Math and Science Class Time
Ideal Math and Science Class TimeA short sample of projects that Sal and Aragon used alongside the Khan Academy core software and videos. These are the types of projects that can be done if less time class time is devoted to traditional lecturi…
- 2 Oct 11, 2:27pm -
Tau versus pi | Graphs of trig functions | Trigonometry | Khan Academy
Tau versus pi | Graphs of trig functions | Trigonometry | Khan AcademyWhy Tau might be a better number to look at than PiWatch the next lesson: https://www.khanacademy.org/math/trigonometry/trig-function-graphs/long_live_tau/v/pi-is-still-wrong…
- 2 Oct 11, 2:26pm -
Introduction to i and imaginary numbers | Imaginary and complex numbers | Precalculus | Khan Academy
Introduction to i and imaginary numbers | Imaginary and complex numbers | Precalculus | Khan AcademyIntroduction to i and imaginary numbersPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/precalculus…
- 2 Oct 11, 2:26pm -
Are southern hemisphere seasons more severe? | Cosmology & Astronomy | Khan Academy
Are southern hemisphere seasons more severe? | Cosmology & Astronomy | Khan AcademyAre Southern Hemisphere seasons more severe because of the eccentricity in Earth's orbit? Created by Sal Khan.Watch the next lesson: https://www.khanacademy.org/…
- 2 Oct 11, 2:26pm -
Probability with playing cards and Venn diagrams | Probability and Statistics | Khan Academy
Probability with playing cards and Venn diagrams | Probability and Statistics | Khan AcademyProbability of compound events. The Addition Rule. Common Core Standard 457 S-CP.7Practice this lesson yourself on KhanAcademy.org right now: https://w…
- 2 Oct 11, 2:25pm -
Vi and Sal talk about the mysteries of Benford's law | Logarithms | Algebra II | Khan Academy
Vi and Sal talk about the mysteries of Benford's law | Logarithms | Algebra II | Khan AcademyVi Hart visits Khan Academy and talks about Benford's Law with SalWatch the next lesson: https://www.khanacademy.org/math/algebra2/logarithms-tutorial/…
- 2 Oct 11, 2:24pm -
American call options | Finance & Capital Markets | Khan Academy
American call options | Finance & Capital Markets | Khan AcademyAmerican Call Options. Created by Sal Khan.Watch the next lesson: https://www.khanacademy.org/economics-finance-domain/core-finance/derivative-securities/put-call-options/v/basic-…
- 16 Sep 11, 11:02pm -
Fair value accounting | Finance & Capital Markets | Khan Academy
Fair value accounting | Finance & Capital Markets | Khan AcademyDifference between Historical Cost and Fair Value Accounting. Created by Sal Khan. Watch the next lesson: https://www.khanacademy.org/economics-finance-domain/core-finance/accoun…
- 10 Sep 11, 12:48am -
Stock dilution | Stocks and bonds | Finance & Capital Markets | Khan Academy
Stock dilution | Stocks and bonds | Finance & Capital Markets | Khan AcademyWhy the value per share does not really get diluted when more shares are issued in a secondary offering. Created by Sal Khan.Watch the next lesson: https://www.khanaca…
- 10 Sep 11, 12:48am -
Appomattox Court House and Lincoln's Assassination
Appomattox Court House and Lincoln's AssassinationFrom Lee's Surrender to Grant to Lincoln's AssassinationMore free lessons at: http://www.khanacademy.org/video?v=Frpq_A7Ky_QFrom:Khan AcademyViews:202168 426ratingsTime:06:01More in…
- 10 Sep 11, 12:46am -
Introduction to Programs Data Types and Variables
Introduction to Programs Data Types and VariablesWriting a basic program. Basics of data types, variables and conditional statementsFrom:Khan AcademyViews:834977 2134ratingsTime:11:29More inEducation
- 10 Sep 11, 12:45am -
Pangaea | Earth geological and climatic history | Cosmology & Astronomy | Khan Academy
Pangaea | Earth geological and climatic history | Cosmology & Astronomy | Khan AcademyPangaea - the idea of Pangaea and some of the evidence behind it. Created by Sal Khan.Watch the next lesson: https://www.khanacademy.org/science/cosmology-and…
- 10 Sep 11, 12:44am -
Plate tectonics: Evidence of plate movement | Cosmology & Astronomy | Khan Academy
Plate tectonics: Evidence of plate movement | Cosmology & Astronomy | Khan AcademyPlate Tectonics -- Evidence of plate movement. Created by Sal Khan.Watch the next lesson: https://www.khanacademy.org/science/cosmology-and-astronomy/earth-histor…
- 10 Sep 11, 12:44am -
Earth formation | Life on earth and in the universe | Cosmology & Astronomy | Khan Academy
Earth formation | Life on earth and in the universe | Cosmology & Astronomy | Khan AcademyHow the Earth is a the byproduct of a local supernova. Created by Sal Khan.Watch the next lesson: https://www.khanacademy.org/science/cosmology-and-astron…
- 10 Sep 11, 12:44am -
Why gravity gets so strong near dense objects | Cosmology & Astronomy | Khan Academy
Why gravity gets so strong near dense objects | Cosmology & Astronomy | Khan AcademyWhy Gravity Gets So Strong Near Dense Objects. Created by Sal Khan.Watch the next lesson: https://www.khanacademy.org/science/physics/cosmology-and-astronomy/ea…
- 10 Sep 11, 12:44am -
Black holes | Stars, black holes and galaxies | Cosmology & Astronomy | Khan Academy
Black holes | Stars, black holes and galaxies | Cosmology & Astronomy | Khan AcademyBlack Holes. Created by Sal Khan.Watch the next lesson: https://www.khanacademy.org/science/cosmology-and-astronomy/stellar-life-topic/stellar-life-death-tutori…
- 10 Sep 11, 12:43am -
Hubble's law | Scale of the universe | Cosmology & Astronomy | Khan Academy
Hubble's law | Scale of the universe | Cosmology & Astronomy | Khan AcademyHubble's Law. Created by Sal Khan.Watch the next lesson: https://www.khanacademy.org/science/cosmology-and-astronomy/universe-scale-topic/big-bang-expansion-topic/v/a-un…
- 10 Sep 11, 12:43am -
Glucose Insulin and Diabetes
Glucose Insulin and DiabetesThe basics of Type I and Type II diabetesMore free lessons at: http://www.khanacademy.org/video?v=rPLjSY00JlEFrom:Khan AcademyViews:507869 1789ratingsTime:07:24More inEducation
- 10 Sep 11, 12:42am -
Thank You Khan Academy!
Thank You Khan Academy!www.khanacademy.orgFrom:Mark HalberstadtViews:138951 2439ratingsTime:07:53More inEducation
- 6 Sep 11, 3:58am -
Human evolution overview | Life on earth and in the universe | Cosmology & Astronomy | Khan Academy
Human evolution overview | Life on earth and in the universe | Cosmology & Astronomy | Khan AcademyCambrian explosion and biodiversity in the Phanerozoic Eon. Created by Sal Khan.Watch the next lesson: https://www.khanacademy.org/science/cosmol…
- 6 Sep 11, 1:26am -
Gravity for astronauts in orbit | Centripetal force and gravitation | Physics | Khan Academy
Gravity for astronauts in orbit | Centripetal force and gravitation | Physics | Khan AcademyWhy do astronauts appear weightless despite being near the Earth? Created by Sal Khan.Watch the next lesson: https://www.khanacademy.org/science/physics…
- 6 Sep 11, 1:25am -
How earth's tilt causes seasons | Cosmology & Astronomy | Khan Academy
How earth's tilt causes seasons | Cosmology & Astronomy | Khan AcademyHow being Earth's tilt causes seasons. Created by Sal Khan.Watch the next lesson: https://www.khanacademy.org/science/cosmology-and-astronomy/earth-history-topic/earth-title-…
- 6 Sep 11, 1:24am -
Proof by induction | Sequences, series and induction | Precalculus | Khan Academy
Proof by induction | Sequences, series and induction | Precalculus | Khan AcademyProving an expression for the sum of all positive integers up to and including n by inductionWatch the next lesson: https://www.khanacademy.org/math/precalculus/se…
- 6 Sep 11, 1:22am -
Correlation and causality | Statistical studies | Probability and Statistics | Khan Academy
Correlation and causality | Statistical studies | Probability and Statistics | Khan AcademyUnderstanding why correlation does not imply causality (even though many in the press and some researchers often imply otherwise)Practice this lesson you…
- 6 Sep 11, 1:21am -
Vi and Sal explore how we think about scale | Algebra II | Khan Academy
Vi and Sal explore how we think about scale | Algebra II | Khan AcademyVi Hart (http://www.youtube.com/vihart) and Sal talk about how we humans perceive things nonlinearlyWatch the next lesson: https://www.khanacademy.org/math/algebra2/exponent…
- 6 Sep 11, 1:21am -
Firestick farming | Life on earth and in the universe | Cosmology & Astronomy | Khan Academy
Firestick farming | Life on earth and in the universe | Cosmology & Astronomy | Khan AcademyHow the indigenous Australians used fire to change their environment. Created by Sal Khan.Watch the next lesson: https://www.khanacademy.org/science/cos…
- 6 Sep 11, 1:21am -
Khan Academy Exercise Software
Khan Academy Exercise SoftwareWalkthrough of the softwareFrom:Khan AcademyViews:357602 1193ratingsTime:10:15More inEducation
- 11 Aug 11, 12:47am -
Salman Khan talk at TED 2011 (from ted.com)
Salman Khan talk at TED 2011 (from ted.com)Salman Khan talk at TED 2011 (from ted.com)More free lessons at: http://www.khanacademy.org/video?v=gM95HHI4gLkAbout Khan AcademyKhan Academy is a nonprofit with a mission to provide a free, world-cl…
- 11 Aug 11, 12:47am -
Basic trigonometry | Basic trigonometry | Trigonometry | Khan Academy
Basic trigonometry | Basic trigonometry | Trigonometry | Khan AcademyIntroduction to trigonometryPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/trigonometry/basic-trigonometry/basic_trig_ratios/e/t…
- 11 Aug 11, 12:46am -
Addition rule for probability | Probability and Statistics | Khan Academy
Addition rule for probability | Probability and Statistics | Khan AcademyVenn diagrams and the addition rule for probabilityPractice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/probability/independent-de…
- 11 Aug 11, 12:46am -
More on Newton's first law of motion | Physics | Khan Academy
More on Newton's first law of motion | Physics | Khan AcademyNewton's First Law (Galileo's Law of Inertia). Created by Sal Khan.Watch the next lesson: https://www.khanacademy.org/science/physics/forces-newtons-laws/newtons-laws-of-motion/v/newt…
- 11 Aug 11, 12:45am -
Gravity for astronauts in orbit | Centripetal force and gravitation | Physics | Khan Academy
Gravity for astronauts in orbit | Centripetal force and gravitation | Physics | Khan AcademyWhy do astronauts appear weightless despite being near the Earth? Created by Sal Khan.Watch the next lesson: https://www.khanacademy.org/science/physics…
- 11 Aug 11, 12:45am -
US and Japanese Quantitative Easing
US and Japanese Quantitative EasingComparing quantitative easing in Japan to "credit easing" in the United StatesMore free lessons at: http://www.khanacademy.org/video?v=a-R8qpea6lcFrom:Khan AcademyViews:60866 384ratingsTime:03:15Mo…
- 11 Aug 11, 12:43am -
Introduction to light | Electronic structure of atoms | Chemistry | Khan Academy
Introduction to light | Electronic structure of atoms | Chemistry | Khan AcademyLight and the electromagnetic radiation spectrum. Wave and particle-like behavior, and how to calculate the wavelength or frequency of a light wave. Created by Sal Kh…
- 11 Aug 11, 12:42am -
Scale of the small | Scale of the universe | Cosmology & Astronomy | Khan Academy
Scale of the small | Scale of the universe | Cosmology & Astronomy | Khan AcademyFrom honey bees to cells, viruses, and atoms -- understanding the scale of the very small. Created by Sal Khan.Watch the next lesson: https://www.khanacademy.org/s…
- 11 Aug 11, 12:42am -
How earth's tilt causes seasons | Cosmology & Astronomy | Khan Academy
How earth's tilt causes seasons | Cosmology & Astronomy | Khan AcademyHow being Earth's tilt causes seasons. Created by Sal Khan.Watch the next lesson: https://www.khanacademy.org/science/cosmology-and-astronomy/earth-history-topic/earth-title-…
- 11 Aug 11, 12:42am -
Galactic collisions | Stars, black holes and galaxies | Cosmology & Astronomy | Khan Academy
Galactic collisions | Stars, black holes and galaxies | Cosmology & Astronomy | Khan AcademyCollision of the Milky Way Galaxy with Andromeda (forming "Milkomeda"). Created by Sal Khan.Watch the next lesson: https://www.khanacademy.org/science/c…
- 11 Aug 11, 12:42am -
Carbon 14 dating 1 | Life on earth and in the universe | Cosmology & Astronomy | Khan Academy
Carbon 14 dating 1 | Life on earth and in the universe | Cosmology & Astronomy | Khan AcademyCarbon 14 Dating 1. Created by Sal Khan.Watch the next lesson: https://www.khanacademy.org/science/cosmology-and-astronomy/life-earth-universe/measurin…
- 11 Aug 11, 12:41am -
Elements and atoms | Atoms, compounds, and ions | Chemistry | Khan Academy
Elements and atoms | Atoms, compounds, and ions | Chemistry | Khan AcademyHow elements relate to atoms. The basics of how protons, electrons and neutrons make up an atom.Watch the next lesson: https://www.khanacademy.org/science/chemistry/atomi…
- 11 Aug 11, 12:40am -
Heart disease and heart attacks | Miscellaneous | Heatlh & Medicine | Khan Academy
Heart disease and heart attacks | Miscellaneous | Heatlh & Medicine | Khan AcademyBasics of heart disease, heart attacks, heart failure, angina, cardiac arrest. Special thanks to Edward J Perper, MD for help in clarifying certain aspects of this…
- 11 Aug 11, 12:40am -
Glucose Insulin and Diabetes
Glucose Insulin and DiabetesThe basics of Type I and Type II diabetesMore free lessons at: http://www.khanacademy.org/video?v=rPLjSY00JlEFrom:Khan AcademyViews:507869 1789ratingsTime:07:24More inEducation
- 11 Aug 11, 12:40am -
Electoral college | American civics | US History | Khan Academy
Electoral college | American civics | US History | Khan AcademyHow we elect our President in the United States. Created by Sal Khan.Watch the next lesson: https://www.khanacademy.org/humanities/us-history/american-civics-parent/american-civics/…
- 11 Aug 11, 12:39am -
FICA tax | American civics | US History | Khan Academy
FICA tax | American civics | US History | Khan AcademyHow the FICA tax is calculated and what it stands for. Created by Sal Khan.Watch the next lesson: https://www.khanacademy.org/humanities/us-history/american-civics-parent/american-civics/v/m…
- 11 Aug 11, 12:39am -
Deficit and debt ceiling | American civics | US History | Khan Academy
Deficit and debt ceiling | American civics | US History | Khan AcademyBasic of the deficit, debt and debt ceiling. Created by Sal Khan.Watch the next lesson: https://www.khanacademy.org/humanities/us-history/american-civics-parent/american-civi…
- 11 Aug 11, 12:39am -
Primaries and caucuses | American civics | US History | Khan Academy
Primaries and caucuses | American civics | US History | Khan AcademyHow states choose their delegates for the national party conventions (video content under CC-BY-SA license). Created by Sal Khan.Watch the next lesson: https://www.khanacademy.…
- 11 Aug 11, 12:39am -
Social security intro | American civics | US History | Khan Academy
Social security intro | American civics | US History | Khan AcademyBasics on how social security works. Created by Sal Khan.Watch the next lesson: https://www.khanacademy.org/humanities/us-history/american-civics-parent/american-civics/v/fica-t…
- 11 Aug 11, 12:39am -