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Khan Academy

Khan Academy

Khan Academy is a nonprofit providing a free, world-class education for anyone, anywhere. Our interactive practice problems, articles, and videos help students succeed in math, biology, chemistry, physics, history, economics, finance, grammar, and many other topics.

Khan Academy provides teachers with data on how their students are doing so they can identify gaps in learning and provide tailored instruction. We also offer free personalized SAT and LSAT practice in partnership with the College Board and the Law School Admission Council.

Our resources have been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy each month.

Want to extend your learning beyond YouTube? Practice what you've just discovered for free: www.khanacademy.org

Links:
khanacademy.org: https://www.khanacademy.org?utm_source=youtube&utm_medium=about
Khanmigo: https://blog.khanacademy.org/learner-khanmigo/?utm_source=youtube&utm_medium=email&utm_campaign=khanmigo-youtube
Khanmigo Writing Coach: https://www.khanmigo.ai/writingcoach
Android: https://play.google.com/store/apps/details?id=org.khanacademy.android&referrer=utm_source=youtubemainchannel&utm_medium=coverphoto
iOS: https://itunes.apple.com/app/apple-store/id469863705?pt=698519&ct=youtubemainchannelcoverphoto&mt=8
Math: https://www.khanacademy.org/math?utm_source=youtube&utm_medium=about
Science: https://www.khanacademy.org/science?utm_source=youtube&utm_medium=about
Computer science: https://www.khanacademy.org/computing?utm_source=youtube&utm_medium=about
Economics: https://www.khanacademy.org/economics-finance-domain?utm_source=youtube&utm_medium=about
Arts and humanities: https://www.khanacademy.org/humanities?utm_source=youtube&utm_medium=about
Test prep: https://www.khanacademy.org/test-prep?utm_source=youtube&utm_medium=about
Life skills: https://www.khanacademy.org/college-careers-more?utm_source=youtube&utm_medium=about
Donate: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=about

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  • Thursday · 13 min

    Defining a Factorial Function

    Defining a function in Python Uploaded 29-06-11 Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Thursday · 4 min

    Finding and interpreting inverse functions | Integrated Math 1 (IM® v.360 aligned) | Khan Academy

    "Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/math/math-1-illustrative-math-aligned/x193529144fa1e1f6:functions/x193529144fa1e1f6:finding-and-interpreting-inverse-functions/v/finding-and-interpreting-inverse-functions Uploaded 23-08-26 Find and interpret an inverse function in terms of situations. Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc" Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Thursday · 11 min

    Averages | Linear equations | Algebra I | Khan Academy

    Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/math/algebra-home/alg-basic-eq-ineq/alg-old-school-equations/v/averages Uploaded 20-02-07 Introduction to averages and algebra problems involving averages. Watch the next lesson: https://www.khanacademy.org/math/algebra/solving-linear-equations-and-inequalities/old-school-equations/v/taking-percentages?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI Missed the previous lesson? https://www.khanacademy.org/math/algebra/solving-linear-equations-and-inequalities/old-school-equations/v/algebra-linear-equations-4?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI Algebra I on Khan Academy: Algebra is the language through which we describe patterns. Think of it as a shorthand, of sorts. As opposed to having to do something over and over again, algebra gives you a simple way to express that repetitive process. It's also seen as a "gatekeeper" subject. Once you achieve an understanding of algebra, the higher-level math subjects become accessible to you. Without it, it's impossible to move forward. It's used by people with lots of different jobs, like carpentry, engineering, and fashion design. In these tutorials, we'll cover a lot of ground. Some of the topics include linear equations, linear inequalities, linear functions, systems of equations, factoring expressions, quadratic expressions, exponents, functions, and ratios. About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Algebra channel: https://www.youtube.com/channel/UCYZrCV8PNENpJt36V0kd-4Q?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Thursday · 6 min

    Hands off My Phone! (An ELA audio drama)

    This is an audio play that goes alongside a series of reading exercises for Khan Academy's ELA curriculum! To learn more, visit: https://www.khanacademy.org/ela/cc-6th-reading-vocab/x8c8165c7dcd5e900:learn-by-topic-banning-behavior Uploaded 22-09-20 This play was written by Khan Academy's own Tom Green and stars: Lisette Alvarez as Valentina Jordan Cobb as Jamila Felipe Escamilla as Principal Rosario, and David Rheinstrom as Sebastian Lisette's work can be found all over the internet, but especially on their urban fantasy podcast, KALILA STORMFIRE'S ECONOMICAL MAGICK SERVICES. Jordan is a writer, director, and actor—her production company, NO SUCH THING AUDIO DRAMA PRODUCTIONS, creates engrossing and terrifying stories for the ear. Felipe and David work at Khan Academy! Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc Attributions: “Cafeteria AMB” licensed under an attribution license from https://freesound.org/people/RorisangKgatle/sounds/366607/ “Cell odd vibrate and feedback” from https://freesound.org/people/7778/sounds/274400/ “Mic feedback” from https://freesound.org/people/chimerical/sounds/106271/ “Mic feedback fx short mid 2” from https://freesound.org/people/chimerical/sounds/105980/ “High school canteen” from http://www.freesound.org/people/klankbeeld/ “Notification Up I” from https://freesound.org/people/FoolBoyMedia/sounds/234564/ “Footsteps walking toward and away” from https://freesound.org/people/paulmessier/sounds/269458/ Blood Meridian by Curlew “crazy feet, sensible shoes” licensed under a CC 3.0 Attribution-Noncommercial-NoDerivativeWorks license “Menilmontant” by Latché swing, licensed under a CC 2.0 attribution-noncommercial-sharealike license “Time Flux” by revolution void licensed under an attribution license Who Gosh by Big Mean Sound Machine is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License. Other sound effects and music from non-copyrighted (Creative Commons Zero license) sources Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Thursday · 5 min

    Graphing quadratics in factored form when a=1 | Algebra 1 (IM® v.360 aligned) | Khan Academy

    "Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/math/algebra-1-illustrative-math/x6418b49dfbc9d0c9:quadratic-functions-intro/x6418b49dfbc9d0c9:factored-form-graphing/v/graphing-quadratics-in-factored-form-when-a-1 Uploaded 23-08-26 Graph quadratic functions written in factored form, f(x) = a(x-p)(x-q), when a = 1, and identify the vertex and y-intercept. Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc" Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Thursday · 10 min

    Introduction to Ratios

    Basic ratio problems. (from KhanAcademy.org) Uploaded 03-03-07 Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Thursday · 5 min

    Exploring key features of functions | Integrated Math 1 (IM® v.360 aligned) | Khan Academy

    "Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/math/math-1-illustrative-math-aligned/x193529144fa1e1f6:functions/x193529144fa1e1f6:domain-range-part-2/v/exploring-key-features-of-functions Uploaded 23-08-26 Interpret key features of a graph. Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc" Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Thursday · 12 min

    Advanced ratio problems

    More advanced ratio problems More free lessons at: http://www.khanacademy.org/video?v=PASSD2OcU0c Uploaded 03-03-07 Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Thursday · 8 min

    Distillation curves | Intermolecular forces and properties | AP Chemistry | Khan Academy

    Keep going! Check out the next lesson and practice what you’re learning: https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:intermolecular-forces-and-properties/x2eef969c74e0d802:separation-of-solutions-and-mixtures-chromatography/v/thin-layer-chromatography-tlc Uploaded 21-09-20 The progress of a distillation can be represented using a distillation curve, which plots temperature versus volume of distillate collected. In this video, we'll learn how to interpret the various regions of a distillation curve for the fractional distillation of a 1:1 mixture of methyl and propyl acetate. View more lessons or practice this subject at https://www.khanacademy.org/science/ap-chemistry-beta/x2eef969c74e0d802:intermolecular-forces-and-properties/x2eef969c74e0d802:separation-of-solutions-and-mixtures-chromatography/v/distillation-curves Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Thursday · 5 min

    Comparing linear and exponential relationships | Khan Academy

    "Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/math/math-1-illustrative-math-aligned/x193529144fa1e1f6:introduction-to-exponential-functions/x193529144fa1e1f6:growing-and-growing/v/comparing-linear-and-exponential-relationships Uploaded 23-08-26 Analyze and compare linear and exponential relationships using numerical calculations and by interpreting graphs that illustrate their respective growth patterns. Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc" Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Thursday · 11 min

    Why borrowing works

    An explanation of why (not how) borrowing/regrouping works when subtracting numbers Uploaded 03-03-07 Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Thursday · 7 min

    Recursive Factorial Function

    Introduction to recursion. Uploaded 29-06-11 Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Thursday · 6 min

    Comparing quadratic and exponential functions | Algebra 1 (IM® v.360 aligned) | Khan Academy

    "Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/math/algebra-1-illustrative-math/x6418b49dfbc9d0c9:quadratic-functions-intro/x6418b49dfbc9d0c9:comparing-quadratic-and-exponential-functions/v/comparing-quadratic-and-exponential-functions Uploaded 23-08-26 Compare quadratic and exponential functions using tables, graphs, calculations, and growth factors to understand how each type of function grows. Identify when an exponential becomes greater and explain why exponential growth eventually surpasses quadratic growth. Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc" Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Thursday · 8 min

    Algebra: Solving Inequalities

    Solving linear inequalities. Uploaded 05-03-07 Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Thursday · 4 min

    Measuring lengths in different units

    Keep going! Check out the next lesson and practice what you’re learning: https://www.khanacademy.org/math/cc-2nd-grade-math/cc-2nd-measurement-data/cc-2nd-measuring-length/e/measuring-length-in-different-units Uploaded 21-09-20 Measuring lengths in different units Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Thursday · 6 min

    Comparing guesses and absolute errors | Integrated Math 1 (IM® v.360 aligned) | Khan Academy

    "Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/math/math-1-illustrative-math-aligned/x193529144fa1e1f6:functions/x193529144fa1e1f6:absolute-value-functions-part-1/v/comparing-guesses-and-absolute-errors Uploaded 23-08-26 Analyze and interpret a scatter plot of numerical guesses versus their absolute errors, calculating the errors from a target value and generalizing the relationship in words and/or equations. Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc" Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Thursday · 12 min

    Quadratic inequalities | Polynomial and rational functions | Algebra II | Khan Academy

    Solving quadratic inequalities using factoring Watch the next lesson: https://www.khanacademy.org/math/algebra2/polynomial_and_rational/quad_ineq/v/quadratic-inequalities-visual-explanation?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraII Missed the previous lesson? https://www.khanacademy.org/math/algebra2/polynomial_and_rational/quad_formula_tutorial/v/discriminant-for-types-of-solutions-for-a-quadratic?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraII Algebra II on Khan Academy: Your studies in algebra 1 have built a solid foundation from which you can explore linear equations, inequalities, and functions. In algebra 2 we build upon that foundation and not only extend our knowledge of algebra 1, but slowly become capable of tackling the BIG questions of the universe. We'll again touch on systems of equations, inequalities, and functions...but we'll also address exponential and logarithmic functions, logarithms, imaginary and complex numbers, conic sections, and matrices. Don't let these big words intimidate you. We're on this journey with you! Uploaded 05-03-07 About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to Khan Academy’s Algebra II channel: https://www.youtube.com/channel/UCsCA3_VozRtgUT7wWC1uZDg?sub_confirmation=1 Subscribe to Khan Academy: https://www.youtube.com/subscription_center?add_user=khanacademy Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Thursday · 4 min

    Quadratic equation from geometric context | Algebra 1 (IM® v.360 aligned) | Khan Academy

    "Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/math/algebra-1-illustrative-math/x6418b49dfbc9d0c9:quadratic-equations-part1/x6418b49dfbc9d0c9:finding-unknown-inputs/v/quadratic-equation-from-geometric-context Uploaded 23-08-26 Write a quadratic equation from a situation and interpret what a solution means in context. Khan Academy is a nonprofit organization with the mission of providing a free, world-class education for anyone, anywhere. We offer quizzes, questions, instructional videos, and articles on a range of academic subjects, including math, biology, chemistry, physics, history, economics, finance, grammar, preschool learning, and more. We provide teachers with tools and data so they can help their students develop the skills, habits, and mindsets for success in school and beyond. Khan Academy has been translated into dozens of languages, and 15 million people around the globe learn on Khan Academy every month. As a 501(c)(3) nonprofit organization, we would love your help! Donate or volunteer today! Donate here: https://www.khanacademy.org/donate?utm_source=youtube&utm_medium=desc Volunteer here: https://www.khanacademy.org/contribute?utm_source=youtube&utm_medium=desc" Learn more about your ad choices. Visit megaphone.fm/adchoices

Showing 121–140 of 144 episodes