Skip to content
Artwork for Khan Academy
EducationScience

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

Play
  • 142 episodes
  • daily
  • Avg 8 min
  • English
Counted on this page — what you have heard stays on this device, so it is not something the list can be paged by.
  • Friday · 4 min

    Solving radical equations | Exponent expressions and 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/algebra2/x2ec2f6f830c9fb89:eq/x2ec2f6f830c9fb89:sqrt-eq/v/solving-radical-equations Uploaded 24-06-11 Solving Radical Equations Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/algebra/exponent-equations/radical_equations/e/radical_equations?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI Watch the next lesson: https://www.khanacademy.org/math/algebra/exponent-equations/radical_equations/v/extraneous-solutions-to-radical-equations?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI Missed the previous lesson? https://www.khanacademy.org/math/algebra/exponent-equations/simplifying-radical-expressions/v/how-to-rationalize-a-denominator?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

  • Friday · 7 min

    Debt consolidation | Loans and debt | Financial Literacy | Khan Academy

    "Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/college-careers-more/financial-literacy/xa6995ea67a8e9fdd:loans-and-debt/xa6995ea67a8e9fdd:debt/v/debt-consolidation Uploaded 30-08-26 Debt consolidation is the process of combining multiple debts into a single loan, typically to simplify finances and potentially lower the total effective interest rate. 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

  • Friday · 9 min

    How to build car insurance coverage | Insurance | Financial Literacy | Khan Academy

    "Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/college-careers-more/financial-literacy/xa6995ea67a8e9fdd:insurance/xa6995ea67a8e9fdd:car-insurance-options-and-cost/v/how-to-build-car-insurance Uploaded 29-08-26 Building a car insurance policy involves picking and choosing different types of coverages to fit what you need. It helps to understand how options like liability, collision, comprehensive, and medical payments handle different situations, from fender benders to natural disasters. 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

  • Friday · 11 min

    Subtracting decimals (old) | Decimals | Pre-Algebra | Khan Academy

    Subtracting decimal numbers Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/adding-decimals-pre-alg/e/adding_and_subtracting_decimals_word_problems?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/multiplying-decimals-pre-alg/v/intro-to-multiplying-decimals?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/adding-decimals-pre-alg/v/subtracting-decimals-word-problem?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Pre-Algebra on Khan Academy: No way, this isn't your run of the mill arithmetic. This is Pre-algebra. You're about to play with the professionals. Think of pre-algebra as a runway. You're the airplane and algebra is your sunny vacation destination. Without the runway you're not going anywhere. Seriously, the foundation for all higher mathematics is laid with many of the concepts that we will introduce to you here: negative numbers, absolute value, factors, multiples, decimals, and fractions to name a few. So buckle up and move your seat into the upright position. We're about to take off! Uploaded 22-01-07 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 KhanAcademy’s Pre-Algebra channel:: https://www.youtube.com/channel/UCIMlYkATtXOFswVoCZN7nAA?sub_confirmation=1 Subscribe to KhanAcademy: https://www.youtube.com/subscription_center?add_user=khanacademy Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Friday · 11 min

    Algebra: Slope

    Figuring out the slope of a line Uploaded 25-11-06 Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Friday · 7 min

    Types of studies | AP Statistics | Khan Academy

    Keep going! Check out the next lesson and practice what you’re learning: https://www.khanacademy.org/math/ap-statistics/gathering-data-ap/sampling-observational-studies/v/worked-example-identifying-observational-study Uploaded 29-09-20 Sal distinguishes between experiments and observational studies, and further describes types of observational studies: retrospective, prospective, and sample surveys. View more lessons or practice this subject at https://www.khanacademy.org/math/ap-statistics/gathering-data-ap#sampling-observational-studies Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Friday · 4 min

    Balancing a budget | Budgeting and saving | Financial mathematics (TX TEKS) | Khan Academy

    "Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/math/financial-mathematics-tx-teks/x647545bbd61df4a7:budgeting-and-saving/x647545bbd61df4a7:budgeting/v/balancing-a-budget-fin-lit Uploaded 30-08-26 Analyze a budget that appears balanced but relies on savings to cover expenses. Learn why borrowing from savings can affect future budgets and explore ways to adjust spending, increase income, and pay back savings over time. 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

  • Friday · 6 min

    Debt counseling | Loans and debt | Financial Literacy | Khan Academy

    "Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/college-careers-more/financial-literacy/xa6995ea67a8e9fdd:loans-and-debt/xa6995ea67a8e9fdd:debt/v/debt-counseling Uploaded 29-08-26 Debt counseling helps people manage their money, create budgets, and make realistic plans to pay off debt over time. It’s important not to confuse this with debt settlement, which involves negotiating to pay less than the total amount owed and can have a bigger impact on your credit score. 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

  • Friday · 12 min

    Algebra: Slope 2

    Second part of determining the slope of a line Uploaded 25-11-06 Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Friday · 11 min

    Level 4 Subtraction

    Subtraction of multi-digit numbers involving borrowing Uploaded 22-01-07 Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Friday · 4 min

    Writing a check | Budgeting and saving | Financial mathematics (TX TEKS) | Khan Academy

    "Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/math/financial-mathematics-tx-teks/x647545bbd61df4a7:budgeting-and-saving/x647545bbd61df4a7:payment-methods/v/writing-a-check Uploaded 29-08-26 Writing checks might feel a little old-school, but it’s still good to know how! Some places—like a landlord or a small local business—might still ask for one. It’s a simple way to move money from your account to someone else’s, no app required. 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

  • Friday · 4 min

    Are credit cards bad? | Consumer credit | Financial mathematics (TX TEKS) | Khan Academy

    "Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/math/financial-mathematics-tx-teks/x647545bbd61df4a7:consumer-credit/x647545bbd61df4a7:credit-cards/v/are-credit-cards-bad Uploaded 29-08-26 Credit cards offer convenience, rewards like cash back and travel miles, and the ability to build a positive credit rating when used responsibly. However, they also carry significant risks, such as high interest rates and fees, which can lead to overspending if balances are not paid off in full each month. 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

  • Friday · 8 min

    Algebra: Slope 3

    Part 3 of slope Uploaded 25-11-06 Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Friday · 12 min

    Level 4 division | Multiplication and division | Arithmetic | Khan Academy

    Here's another practice example where you divide by two digits. Uploaded 22-01-07 Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/arithmetic/multiplication-division/long_division/e/division_3?utm_source=YT&utm_medium=Desc&utm_campaign=Arithmetic Watch the next lesson: https://www.khanacademy.org/math/arithmetic/multiplication-division/lattice_multiplication/v/lattice-multiplication?utm_source=YT&utm_medium=Desc&utm_campaign=Arithmetic Missed the previous lesson? https://www.khanacademy.org/math/arithmetic/multiplication-division/long_division/v/dividing-by-a-two-digit-number?utm_source=YT&utm_medium=Desc&utm_campaign=Arithmetic Arithmetic on Khan Academy: So you're ready to have some arithmetic fun? You've come to the right spot! It's the first "official" math topic and chalked full of fun exercises and great videos which help you start your journey towards math mastery. We'll cover the big ones: addition, subtraction, multiplication, and division, of course. But we don't stop there. We'll get into negative numbers, absolute value, decimals, and fractions, too. Learning math should be fun, and we plan on having some with you. Ready to get started? 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 KhanAcademy’s Arithmetic channel: https://www.youtube.com/channel/UCFlJkgTNeC-FYYIQnyE5yzQ?sub_confirmation=1 Subscribe to KhanAcademy: https://www.youtube.com/subscription_center?add_user=khanacademy Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Friday · 5 min

    Influential points in regression | AP Statistics | Khan Academy

    Keep going! Check out the next lesson and practice what you’re learning: https://www.khanacademy.org/math/ap-statistics/gathering-data-ap/sampling-observational-studies/v/worked-example-identifying-observational-study Uploaded 29-09-20 Sal shows how outliers and high-leverage points can be influential to different measurements like the slope, y-intercept, and correlation coefficient (r) in least-squares regression. View more lessons or practice this subject at https://www.khanacademy.org/math/ap-statistics/bivariate-data-ap#assessing-fit-least-squares-regression Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Friday · 7 min

    Housing costs for renters and owners | Housing | Financial mathematics (TX TEKS) | Khan Academy

    "Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/math/financial-mathematics-tx-teks/x647545bbd61df4a7:housing/x647545bbd61df4a7:renting-vs-homeownership/v/housing-costs-for-renters-and-owners Uploaded 29-08-26 When deciding whether to rent or buy a home, it’s important to consider the many costs of homeownership, including maintenance, repairs, utilities, and association fees. As a renter, you typically avoid many (but not all) of these expenses. 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

  • Friday · 6 min

    Reading a credit card statement | Consumer credit | Financial Literacy | Khan Academy

    "Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now! https://www.khanacademy.org/college-careers-more/financial-literacy/xa6995ea67a8e9fdd:consumer-credit/xa6995ea67a8e9fdd:credit-cards/v/reading-a-credit-card-statement Uploaded 29-08-26 Credit card statement reviews are essential for tracking billing cycles, credit limits, and interest calculations to stay on top of your financial obligations. Regularly checking your account activity is the best way to catch potential fraud early, cancel unused subscriptions, and understand how paying more than the minimum can save you from long-term debt. 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

  • Friday · 12 min

    systems of equations

    systems of equations More free lessons at: http://www.khanacademy.org/video?v=nok99JOhcjo Uploaded 25-11-06 Learn more about your ad choices. Visit megaphone.fm/adchoices

  • Friday · 12 min

    Dividing decimals with hundredths example 3 | Decimals | Pre-Algebra | Khan Academy

    The old saying is "practice makes perfect." Let's keep practicing dividing decimals and making our divisor a whole number. Uploaded 22-01-07 Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/dividing-decimals-pre-alg/e/dividing_decimals_3?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Watch the next lesson: https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/decimal-to-fraction-pre-alg/v/converting-fractions-to-decimals-ex1?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Missed the previous lesson? https://www.khanacademy.org/math/pre-algebra/decimals-pre-alg/dividing-decimals-pre-alg/v/dividing-decimals?utm_source=YT&utm_medium=Desc&utm_campaign=PreAlgebra Pre-Algebra on Khan Academy: No way, this isn't your run of the mill arithmetic. This is Pre-algebra. You're about to play with the professionals. Think of pre-algebra as a runway. You're the airplane and algebra is your sunny vacation destination. Without the runway you're not going anywhere. Seriously, the foundation for all higher mathematics is laid with many of the concepts that we will introduce to you here: negative numbers, absolute value, factors, multiples, decimals, and fractions to name a few. So buckle up and move your seat into the upright position. We're about to take off! About Khan Academy: Khan Academy is a nonprofit with a mission to provide a free, world-class education for anyone, anywhere. We believe learners of all ages should have unlimited access to free educational content they can master at their own pace. We use intelligent software, deep data analytics and intuitive user interfaces to help students and teachers around the world. Our resources cover preschool through early college education, including math, biology, chemistry, physics, economics, finance, history, grammar and more. We offer free personalized SAT test prep in partnership with the test developer, the College Board. Khan Academy has been translated into dozens of languages, and 100 million people use our platform worldwide every year. For more information, visit www.khanacademy.org, join us on Facebook or follow us on Twitter at @khanacademy. And remember, you can learn anything. For free. For everyone. Forever. #YouCanLearnAnything Subscribe to KhanAcademy’s Pre-Algebra channel:: https://www.youtube.com/channel/UCIMlYkATtXOFswVoCZN7nAA?sub_confirmation=1 Subscribe to KhanAcademy: https://www.youtube.com/subscription_center?add_user=khanacademy Learn more about your ad choices. Visit megaphone.fm/adchoices

Showing 61–80 of 142 episodes