Top videos
This is the easiest way to compare fractions - so if you need help with how to compare fractions you're in the right place!
The steps are easy - and you'll be working out which is the largest fraction instantly.
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How Many Faces, Edges And Vertices Does A Rectangular Prism Have?
Here we’ll look at how to work out the faces, edges and vertices of a rectangular prism.
We’ll start by counting the faces, these are the flat surfaces. A rectangular prism has 6 faces altogether - all rectangular in shape.
Next we’ll work out how many edges the rectangular prism has, which are where two faces meet. A rectangular proven has 12 edges.
Next we’ll count the corners of the rectangular prism (the corners). Altogether it has 8.
For the full playlist for the faces, edges and Vertices of a whole lot of 3D shapes go to https://www.youtube.com/playli....st?list=PLjbxBzUM6SL
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How Many Faces, Edges And Vertices Does A Cone Have?
Here we’ll look at how to work out the faces, edges and vertices of a cone.
We’ll start by counting the faces, these are the flat surfaces that make the cone. A cone has 1 face altogether - 1 circular base, as well as 1 curved surface.
Next we’ll work out how many edges the cone has, which are where two faces meet. A cone has 1 edge.
Next we’ll count the corners of the cone (the corners). No surprises, a cone does not have any vertices.
For the full playlist for the faces, edges and Vertices of a whole lot of 3D shapes go to https://www.youtube.com/playli....st?list=PLjbxBzUM6SL
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Forget finding common denominators when adding dissimilar fractions - this way is much faster and easier. This video also looks at how to deal with mixed numbers and simplification.
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Want to work out the percentage of a number?
Want to do percentages in your head?
Want to work out percentages instantly?
This is all about percentages - how to work them out - fast.
To support tecmath on Patreon: https://www.patreon.com/tecmath
It really helps and is appreciated!
#percentage #percentages
Grumpy Cat The First Worst Christmas - Christmas Stories Read Aloud for Children by Kids
Click here to purchase Grumpy Cat the First Worst Christmas: https://www.amazon.com/Grumpy-....First-Worst-Christma
Grumpy Cat, the most famous cat in the world, stars in her very own Christmas-themed Big Golden Book!
Grumpy Cat has over 8 million Facebook followers, her own TV movie, a mobile game, and now . . . a Christmas-themed Big Golden Book! In the story of Grumpy Cat’s First Worst Christmas, Pokey makes every effort to get Grumpy Cat to join in the Christmas spirit! Pokey wants to build a snow-cat together, go sledding, decorate the Christmas tree, and bake cookies for Santa! But Grumpy Cat wants to live in her wonderland of NO. Join your favorite feline as she celebrates the most terrible time of the year! Grumpy Cat fans of all ages will get into the spirit with this Big Golden Book, featuring all-new full-color illustrations.
The Luckiest St. Patrick's Day Ever - Children's Stories Read Aloud - St. Patrick's Day Kids Books
by Teddy Slater
Illustrated by Ethan Long
Click here to purchase The Luckiest St. Patrick's Day Ever:https://www.amazon.com/Luckies....t-St-Patricks-Day-Ev
Share in this leprechaun family's charming St. Patrick's Day celebration, complete with a fun parade and an Irish feast!
The St. Patrick's Day parade is off to a very fine start.
The Leprechaun family is marching with lots of heart!
Share in their dancing, share in their fun.
You'll have the luck of the Irish when this day is done!
Top o' the morning! It's March 17th, and the Leprechauns are gathered for their favorite day of the year. Join them as they celebrate St. Patrick's Day with music, dancing, and a parade!
Teddy Slater's delightful rhyming story is accompanied by lively illustrations from Ethan Long.
Star Wars BB-8 on the Run - Children's Stories Read Aloud for Kids
by Drew Daywalt
Illustrated by Matt Myers
Click here to purchase Star Wars BB-8 on the Run: https://www.amazon.com/Star-Wa....rs-BB-8-Drew-Daywalt
When BB-8 is separated from his master, Poe Dameron, on the lonely desert planet of Jakku, he has no choice but to keep rolling. It's all up to him to get a top-secret map back to the Resistance so they can find Luke Skywalker and save the galaxy from the evil First Order.
It's scary to have a big job when you're just a little droid on your own. But BB-8 isn't alone for long. As he speeds across the sand, BB-8 meets all kinds of strangers who need his help. Should he do good things, as Poe always told him, or will that get in the way of his mission?
See how everyone's favorite little astromech droid makes friends and foils enemies in this funny and exciting new Star Wars adventure!
The Night Before St. Patrick's Day - Children's Stories Read Aloud - St. Patrick's Day Kids Books
by Natasha Wing
Illustrated by Amy Wummer
Click here to purchase The Night Before St. Patrick's Day: https://www.amazon.com/Night-B....efore-St-Patricks-Da
Natasha Wing puts an Irish twist on a Christmas classic. It's the night before St. Patrick's Day, and Tim and Maureen are wide awake setting traps to catch a leprechaun! When they wake the next morning to the sound of their dad playing the bagpipes and the smell of their mom cooking green eggs, they're shocked to find that they've actually caught a leprechaun. But will they be able to find his pot of gold?
A Loud Winter’s Nap - Children's Christmas Stories Read Aloud for Kids
by Katy Hudson
Click here to purchase A Loud Winter’s Nap: https://www.amazon.com/Loud-Wi....nters-Nap-Katy-Hudso
For Tortoise, winter is good for one thing: a nice long nap. Can friends open his eyes to a season full of surprises? Every year, Tortoise hibernates through winter. He assumes he isn’t missing much. However, his friends are determined to prove otherwise! Will Tortoise sleep through another winter, or will his friends convince him to stay awake and experience the frosty fun? In the follow-up to her bestselling Too Many Carrots, Katy Hudson delivers a charming picture book, featuring the fun of winter and the heartwarming benefits of friendship.
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Canon and Variation by Twin Musicom is licensed under a Creative Commons Attribution license (https://creativecommons.org/licenses/by/4.0/)
Artist: http://www.twinmusicom.org/
We’ve heard from so many teachers and students who are using Crash Course videos to help with learning amid all this uncertainty, and we are very grateful. Here is some widely applicable, evidence-based public health advice that we put together with the help of our friends at Operation Outbreak and the Sabeti Lab at Harvard.
This video is supported by the Gordon and Betty Moore Foundation through Operation Outbreak and the Sabeti Lab at Harvard University and at Broad Institute of MIT and Harvard.
Complexly also has other great channels like Healthcare Triage with Dr. Aaron Carroll and SciShow that are providing in-depth updates on COVID-19.
SciShow: https://www.youtube.com/c/SciShow
Healthcare Triage: https://www.youtube.com/playli....st?list=PLkfBg8ML-gI
Watch our videos and review your learning with the Crash Course App!
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Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse
Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:
Catherine Conroy, Patty Laqua, Leonora Rossé Muñoz, Stephen Saar, John Lee, Phil Simmons, Alexander Thomson, Mark & Susan Billian, Junrong Eric Zhu, Alan Bridgeman, Jennifer Smith, Matt Curls, Tim Kwist, Ron Lin, Jonathan Zbikowski. Jennifer Killen, Sarah & Nathan Catchings, Brandon Westmoreland, team dorsey, Trevin Beattie, Eric Prestemon, Sam Ferguson, Yasenia Cruz, Eric Koslow, Indika Siriwardena, Khaled El Shalakany, Shawn Arnold, Tom Trval, Siobhán, Ken Penttinen, Nathan Taylor, William McGraw, Justin Zingsheim, Andrei Krishkevich, Jirat, Brian Thomas Gossett, SR Foxley, Ian Dundore, Jason A Saslow, Jessica Wode, Mark, Caleb Weeks, Sam Buck
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#crashcourse #covid-19 #reopening
We've talked about a lot of revolutions in 19th Century Europe, and today we're moving on to a less warlike revolution, the Industrial Revolution. You'll learn about the development of steam power and mechanization, and the labor and social movements that this revolution engendered.
SOURCES
Hobsbawm, Eric. Studies in Archaic Forms of Social Movements in the 19th and 20th Centuries. New York: W. W. Norton, 1965.
Hunt, Lynn. et al. The Making of the West: Peoples and Cultures, 6th ed. Boston: Bedford St. Martin’s, 2019.
Kent, Susan Kingsley. A New History of Britain since 1688: Four Nations and an Empire. New York: Oxford University Press, 2017.
Riello, Giorgio. Cotton: The Fabric That Made the Modern World. Cambridge: Cambridge University Press, 2013.
Smith, Bonnie G. et al. World in the Making: A Global History. New York: Oxford University Press, 2019.
Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse
Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:
Eric Prestemon, Sam Buck, Mark Brouwer, Indika Siriwardena, Avi Yashchin, Timothy J Kwist, Brian Thomas Gossett, Haixiang N/A Liu, Jonathan Zbikowski, Siobhan Sabino, Zach Van Stanley, Jennifer Killen, Nathan Catchings, Brandon Westmoreland, dorsey, Kenneth F Penttinen, Trevin Beattie, Erika & Alexa Saur, Justin Zingsheim, Jessica Wode, Tom Trval, Jason Saslow, Nathan Taylor, Khaled El Shalakany, SR Foxley, Sam Ferguson, Yasenia Cruz, Eric Koslow, Tim Curwick, David Noe, Shawn Arnold, William McGraw, Andrei Krishkevich, Rachel Bright, Jirat, Ian Dundore
--
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#crashcourse #history #europeanhistory
In 1789, the French Monarchy's habit of supporting democratic popular revolutions in North America backfired. Today, we're talking about the French Revolution. Across the world, people were rising up to throw off monarchies, and Louis didn't see the writing on the wall until it was too late. Today we'll talk about how the French Revolution unfolded, and what (if anything) was really accomplished. You'll learn about stuff like the National Assembly, the Tennis Court Oath, the Declaration of the Rights of Man and the Citizen, the guillotine, Robespierre, and a bunch of other kind of unbelievable details.
Hatian Revolutions - CC World History: https://youtu.be/5A_o-nU5s2U
Sources
Hunt, Lynn et al. Making of the West: Peoples and Cultures. 6th ed. Boston: Bedford St. Martin’s, 2019.
Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse
Thanks to the following patrons for their generous monthly contributions that help keep Crash Course free for everyone forever:
Eric Prestemon, Sam Buck, Mark Brouwer, Indika Siriwardena, Avi Yashchin, Timothy J Kwist, Brian Thomas Gossett, Haixiang N/A Liu, Jonathan Zbikowski, Siobhan Sabino, Zach Van Stanley, Jennifer Killen, Nathan Catchings, Brandon Westmoreland, dorsey, Kenneth F Penttinen, Trevin Beattie, Erika & Alexa Saur, Justin Zingsheim, Jessica Wode, Tom Trval, Jason Saslow, Nathan Taylor, Khaled El Shalakany, SR Foxley, Sam Ferguson, Yasenia Cruz, Eric Koslow, Caleb Weeks, Tim Curwick, David Noe, Shawn Arnold, William McGraw, Andrei Krishkevich, Rachel Bright, Jirat, Ian Dundore
--
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#crashcourse #history #europeanhistory
In which John Green ACTUALLY teaches about the Civil War. In part one of our two-part look at the US Civil War, John looks into the causes of the war, and the motivations of the individuals who went to war. The overarching causes and the individual motivations were not always the same, you see. John also looks into why the North won, and whether that outcome was inevitable. The North's industrial and population advantages are examined, as are the problems of the Confederacy, including its need to build a nation at the same time it was fighting a war. As usual, John doesn't get much into the actual battle-by-battle breakdown. He does talk a little about the overarching strategy that won the war, and Grant's plan to just overwhelm the South with numbers. Grant took a lot of losses in the latter days of the war, but in the end, it did lead to the surrender of the South.
If you want to learn more about the Civil War, we recommend these books:
Battle Cry of Freedom by James McPherson: https://bit.ly/3jAtBzo
The Civil War by Shelby Foote: https://bit.ly/38VXTKZ
Hey teachers and students - Check out CommonLit's free collection of reading passages and curriculum resources to learn more about the events of this episode. There were many causes of the American Civil War and events that led to disunion: https://www.commonlit.org/text....s/causes-of-the-amer
Once the war started, its outcome was determined by the different abilities and resources of the divided North and South: https://www.commonlit.org/text....s/a-nation-divided-n
Learn more about Black Americans in the Civil War in episode #18 of Crash Course Black American History: https://www.youtube.com/watch?v=_NgdnsjPFNE
Chapters:
Introduction 00:00
Basic Facts of the Civil War 1:21
Free and Slave States 1:46
Causes of the Civil War 2:15
Religion and the Civil War 3:19
Union Advantages in the Civil War 4:24
Confederate Advantages in the Civil War 5:11
Was the Union's Victory Inevitable? 5:53
Mystery Document 6:43
Ulysses S. Grant 7:39
Union Weaknesses in the Civil War 8:18
Turning Points in the Civil War 9:20
Lincoln's Reelection 10:47
Credits 11:28
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Today's Crash Course Chemistry takes a historical perspective on the creation of the science, which didn't really exist until a super-smart, super-wealthy Frenchman put the puzzle pieces together - Hank tells the story of how we went from alchemists to chemists, who understood the law of conservation of mass as proposed by a decapitated aristocrat, and explains how we came to have a greater understanding of how chemical compounds work and eventually a complete understanding of what atoms and molecules are.
Watch this video in Spanish on our Crash Course en Español channel here: https://youtu.be/HxDjcseTj6s
Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
Download it here for Apple Devices: https://apple.co/3d4eyZo
Download it here for Android Devices: https://bit.ly/2SrDulJ
Table of Contents
Alchemists to Chemists 01:07
Law of Conservation of Mass 03:25
Decapitated Aristocrat 04:11
Chemical Compounds 05:44
Atoms and Molecules 06:07:1
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So last week we talked about what special interest groups are and how they influence the political system, and today we’re going to focus on why we even have them in the first place. As to avoid getting too cynical, we’re going to focus on five benefits of special interest groups and look at how these factor weigh in a group’s formation and size. We’ll also talk about lobbyists, recent congressional action to limit their influence, and finish with a discussion of both insider and outsider strategies that interest groups use to influence policy.
Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios
Support is provided by Voqal: http://www.voqal.org
All attributed images are licensed under Creative Commons by Attribution 4.0
https://creativecommons.org/licenses/...
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In which John Green teaches you about the Cold War as it unfolded in Asia. As John pointed out last week, the Cold War was occasionally hot, and a lot of that heat was generated in Asia. This is starting to sound weird with the hot/cold thing, so let's just say that the United States' struggle against communist expansion escalated to a full-blown, boots-on-the-ground war in Korea and Vietnam. In both of these cases, the United States sent soldiers to intervene in civil wars that it looked like communists might win. That's a bit of a simplification, but John will explain it all to you.
Hey teachers and students - Check out CommonLit's free collection of reading passages and curriculum resources to learn more about the events of this episode. While The Vietnam War was happening very far away from home, it had a major impact on American soldiers and civilians: https://www.commonlit.org/text....s/introduction-to-th
Americans with televisions had the war broadcasted right into their living rooms, leading to an immense Vietnam War resistance effort: https://www.commonlit.org/text....s/resistance-to-the-
Want to learn more about the Cold War? Check out these other videos from Crash Course:
USA vs USSR Fight! The Cold War: Crash Course World History #39:
https://www.youtube.com/watch?v=y9HjvHZfCUI
The Cold War: Crash Course US History #37:
https://www.youtube.com/watch?v=9C72ISMF_D0
George HW Bush and the End of the Cold War: Crash Course US History #44:
https://www.youtube.com/watch?v=L-K19rVDxoM
The Cold War and Consumerism: Crash Course Computer Science #24:
https://www.youtube.com/watch?v=m8i38Yq1wX4
Post-War Rebuilding and the Cold War: Crash Course European History #41:
https://www.youtube.com/watch?v=-rkIqtV07HE
Chapters:
Introduction: The Cold War in Asia 00:00
The Korean War 0:28
Eisenhower's Election 3:05
Cost of the Korean War 3:20
Mystery Document 4:18
Ho Chi Minh 5:19
American Involvement in Vietnam 5:55
The Gulf of Tonkin Incident 7:02
Operation Rolling Thunder 8:13
Fighting in Vietnam 8:41
Public Opinion and the Vietnam War 9:38
Nixon's Plan to Leave Vietnam 10:34
Anti-War Sentiments 11:19
The End of the Vietnam War 11:52
Credits 13:09
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In which John Green teaches you about Imperialism, but not from the perspective of the colonizers. This week John looks at some Asian perspectives on Imperialism; specifically, writers from countries that were colonized by European powers. We'll look at the writings of Sayyid Jamal ad-Din al-Afghani from the Middle East, Liang Qichao from China, and Rabindranath Tagore from India. these voices from the countries that were colonized give us a sense of how conquered people saw their conquerors, and give an insight into what these nations learned from being dominated by Europe. It's pretty interesting, OK? A lot of this episode is drawn from a fascinating book by Pankaj Mishra called The Ruins of Empire: The Revolt Against the West and the Remaking of Asia. You should read it.
Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse
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In which John Green teaches you WHY World War I started. Or tries to anyway. With this kind of thing, it's kind of hard to assign blame to any one of the nations involved. Did the fault lie with Austria-Hungary? Germany? Russia? Julius Caesar? One thing we can say for sure is that you can't blame the United States of America for this one. Woohoo! Well, you can hardly blame the US.
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In which John Green teaches you about the Wild, Wild, West, which as it turns out, wasn't as wild as it seemed in the movies. When we think of the western expansion of the United States in the 19th century, we're conditioned to imagine the loner. The self-reliant, unattached cowpoke roaming the prairie in search of wandering calves, or the half-addled prospector who has broken from reality thanks to the solitude of his single-minded quest for gold dust. While there may be a grain of truth to these classic Hollywood stereotypes, it isn't a very big grain of truth. Many of the pioneers who settled the west were family groups. Many were immigrants. Many were major corporations. The big losers in the westward migration were Native Americans, who were killed or moved onto reservations. Not cool, American pioneers.
Hey teachers and students - Check out CommonLit's free collection of reading passages and curriculum resources to learn more about the events of this episode. America’s Westward expansion was fueled by both Manifest Destiny and a desire to grow the nation and its resources — though at a cost: https://www.commonlit.org/texts/manifest-destiny
As Americans continued to stream West under the name of Manifest Destiny, American Indians saw their lives changed forever as they moved from practicing resistance to lives on reservations: https://www.commonlit.org/text....s/from-resistance-to
Chapters:
Introduction: The Wild, Wild West 00:00
The Western Frontier 0:52
Who Settled in the West? 1:43
Railroads Facilitated Westward Expansion 2:20
Forced Removal of Native Americans 3:22
Indigenous Resistance & The Ghost Dance Movement 4:20
The Dawes Act 5:01
Mystery Document 5:50
American Indian Boarding Schools 7:01
Cowboys 8:04
Ranches Became Family-Run Farms 8:52
Irrigation Projects in the Great Plains 9:51
The Legacy of the Westward Expansion Era 10:49
Credits 12:09
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