Top videos | TeacherFlix | Free Classroom Videos & Ready-to-Use Lesson Resources

Home
Articles

Top videos

All Time

Today

This week

This month

This year

Experimental probability | Statistics and probability | 7th grade | Khan Academy Teacherflix 15 Views • 2 years ago

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/ma....th/cc-seventh-grade-

Based on past experience, we can make reasonable estimates of the likelihood of future events.

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-probability-statistics/cc-7th-basic-prob/e/finding-probability?utm_source=YT&utm_medium=Desc&utm_campaign=7thgrade

Watch the next lesson: https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-probability-statistics/cc-7th-basic-prob/v/intuitive-sense-of-probabilities?utm_source=YT&utm_medium=Desc&utm_campaign=7thgrade

Missed the previous lesson?
https://www.khanacademy.org/math/cc-seventh-grade-math/cc-7th-probability-statistics/cc-7th-basic-prob/v/probability-1-module-examples?utm_source=YT&utm_medium=Desc&utm_campaign=7thgrade

Grade 7th on Khan Academy: 7th grade takes much of what you learned in 6th grade to an entirely new level. In particular, you'll now learn to do everything with negative numbers (we're talking everything--adding, subtracting, multiplying, dividing, fractions, decimals... everything!). You'll also take your algebraic skills to new heights by tackling two-step equations. 7th grade is also when you start thinking about probability (which is super important for realizing that casinos and lotteries are really just ways of taking money away from people who don't know probability) and dig deeper into the world of data and statistics. Onward! (Content was selected for this grade level based on a typical curriculum in the United States.)

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 AcademyÂ Ã Âªs 7th grade channel:
https://www.youtube.com/channe....l/UCzKsXcrLSLDG7VN1L
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

Solid of revolution between two functions (leading up to the washer method) | Khan Academy Teacherflix 15 Views • 2 years ago

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/ma....th/ap-calculus-ab/ab

Finding the volume of a solid of revolution that is defined between two functions. Created by Sal Khan.

Practice this lesson yourself on KhanAcademy.org right now: https://www.khanacademy.org/math/ap-calculus-ab/ab-applications-definite-integrals/ab-washer-method/e/the-washer-method?utm_source=YT&utm_medium=Desc&utm_campaign=APCalculusAB

Watch the next lesson: https://www.khanacademy.org/math/ap-calculus-ab/ab-applications-definite-integrals/ab-washer-method/v/generalizing-the-washer-method?utm_source=YT&utm_medium=Desc&utm_campaign=APCalculusAB

Missed the previous lesson? https://www.khanacademy.org/math/ap-calculus-ab/ab-applications-definite-integrals/ab-disk-method/v/calculating-integral-disc-method-around-vertical-line?utm_source=YT&utm_medium=Desc&utm_campaign=APCalculusAB

AP Calculus AB on Khan Academy: Bill Scott uses Khan Academy to teach AP Calculus at Phillips Academy in Andover, Massachusetts, and heÕs part of the teaching team that helped develop Khan AcademyÕs AP lessons. Phillips Academy was one of the first schools to teach AP nearly 60 years ago.

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 Khan AcademyÕs AP Calculus AB channel: https://www.youtube.com/channe....l/UCyoj0ZF4uw8VTFbml
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

45-45-90 triangle side ratios | Right triangles and trigonometry | Geometry | Khan Academy Teacherflix 15 Views • 2 years ago

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/ma....th/geometry/hs-geo-t

Showing the ratios of the sides of a 45-45-90 triangle are 1:1:sqrt(2)

Watch the next lesson: https://www.khanacademy.org/math/geometry/right_triangles_topic/special_right_triangles/v/30-60-90-triangle-example-problem?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry

Missed the previous lesson?
https://www.khanacademy.org/math/geometry/right_triangles_topic/special_right_triangles/v/30-60-90-triangle-side-ratios-proof?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry

Geometry on Khan Academy: We are surrounded by space. And that space contains lots of things. And these things have shapes. In geometry we are concerned with the nature of these shapes, how we define them, and what they teach us about the world at large--from math to architecture to biology to astronomy (and everything in between). Learning geometry is about more than just taking your medicine ("It's good for you!"), it's at the core of everything that exists--including you. Having said all that, some of the specific topics we'll cover include angles, intersecting lines, right triangles, perimeter, area, volume, circles, triangles, quadrilaterals, analytic geometry, and geometric constructions. Wow. That's a lot. To summarize: it's difficult to imagine any area of math that is more widely used than geometry.

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 Geometry channel:
https://www.youtube.com/channe....l/UCD3OtKxPRUFw8kzYl
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

How Long Would You Survive In The Past? Teacherflix 15 Views • 2 years ago

2nd Channel: https://www.youtube.com/@simplehistory2
Become a Simple History member: https://www.youtube.com/simplehistory/join
Support us on Patreon: https://www.patreon.com/simplehistory

Copyright: DO NOT translate and re-upload our content on Youtube or other social media.
Thanks to the technological advances of the modern age, in 2023 life is pretty safe. In the past however, many of the things we take for granted now were likely a death sentence for our ancestors.

SIMPLE HISTORY MERCHANDISE

Get the Simple History books on Amazon:

https://www.amazon.com/Daniel-....Turner-%60/e/B00H5TY

T-Shirts

https://teespring.com/stores/s....imple-history-offici

Simple history gives you the facts, simple!

See the book collection here:

Amazon USA

http://www.amazon.com/Daniel-Turner/e/B00H5TYLAE/

Amazon UK
http://www.amazon.co.uk/Daniel....-Turner/e/B00H5TYLAE

https://www.facebook.com/Simpl....e-History-5494376751

https://twitter.com/SimpleHistoryYT

Credit:
Show Created by Daniel Turner (B.A. (Hons) in History, University College London)
Script: Jake Leigh-Howarth

Narrator:

Chris Kane
https://vocalforge.com/

Backe, Caleb. "Deadly Beauty Practices In History." 6 March, 2022. Maple Holistics.

BAUS. "Virtual Museum Time Corridor 17th Century". Accessed 27 February, 2023.

CDC. "Syphilis: The Facts." Accessed 27 February, 2023.

CTPA. "Cosmetic Safety." Accessed 27 February, 2023.

De Abreu, Kristine. "Apocalypse Then: The Volcanic Winter of 536AD." July 18, 2022. ExplorersWeb.

Degroot, Dagomar. "Small climate changes can have devastating local consequences – it happened in the Little Ice Age." July 27, 2021. The Conversation.

Eschner, Kat. "Fearing a Smallpox Epidemic, Civil War Troops Tried to Self-Vaccinate." May 1, 2017. Smithsonian.

Finance. "Scotland to Panama Flight Duration." Accessed 27 February, 2023.

Greschko, Michael. "Colossal volcano behind 'mystery' global cooling finally found." August 23, 2019. NationalGeographic.

Grist, Kerry. "Dangerous Beauty: Hazardous Chemicals and Poisons in Historic Cosmetics." 29 July 2022. ScienceMuseumGroup.

Johnson, Ben. "The Darien Scheme." Accessed 27 February, 2023.

Kelly, DB. "The Deadly Great Frost of 1709 Is Still a Mystery." Last modified 13 January, 2022. Grunge.

Lanchester, John. "How the Little Ice Age Changed History." March 25, 2019. The New Yorker.

Laumonier, Lucie. "A Medieval Peasants’ Winter." rused 27 February, 2023.

Maley, Sonny. "The Darien Scheme." May 2005. GLA.

Maloney, T.R., Dilkes-Hall, I.E., Vlok, M. et al. "Surgical amputation of a limb 31,000 years ago in Borneo." Nature 609 (September 2022): 547–551.

Oosthoek, K. Jan. "Little Ice Age." June 5, 2015. EH Resources.

Pattenden, Miles. "Volcanoes, plague, famine and endless winter: Welcome to 536, what historians and scientists believe was the ‘worst year to be alive'." February 1, 2022. The Conversation.

Seladi-Schulman, Jill. "What Is the Periosteum?" Last modified September 26, 2018. Healthline.

Shuster, Sam. "Painless amputation: history of a discovery
that wasn’t made." BMJ (19-26 December 2009).

Smith College. "The Effects of the Little Ice Age (c. 1300-1850)." Accessed 27 February, 2023.

Wischhover, Cheryl. "The Most Dangerous Beauty Through the Ages." December 17, 2013. TheCut.

Zapata, Mariana. "How Civil War Soldiers Gave Themselves Syphilis While Trying to Avoid Smallpox." November 30, 2016. Atlas Obscura.