Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/ma....th/algebra/x2f8bb115

We've learned about order of operations and combining like terms. Let's layer the distributive property on top of this.

Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/algebra/introduction-to-algebra/manipulating-expressions/e/combining_like_terms_2?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI

Watch the next lesson: https://www.khanacademy.org/math/algebra/introduction-to-algebra/manipulating-expressions/v/distributive-property-with-rational-terms?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraI

Missed the previous lesson?
https://www.khanacademy.org/math/algebra/introduction-to-algebra/manipulating-expressions/v/combining-like-terms-3?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/channe....l/UCYZrCV8PNENpJt36V
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

Our Content is part of Khan for Educators, a free course for teachers to learn more about Khan Academy, the content and tools available for teachers and students, and best practices for implementing technology with students.

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/sc....ience/cosmology-and-

Intergalactic Scale. Created by Sal Khan.

Watch the next lesson: https://www.khanacademy.org/science/cosmology-and-astronomy/universe-scale-topic/scale-earth-galaxy-tutorial/v/hubble-image-of-galaxies?utm_source=YT&utm_medium=Desc&utm_campaign=cosmologystronomy

Missed the previous lesson? https://www.khanacademy.org/science/cosmology-and-astronomy/universe-scale-topic/scale-earth-galaxy-tutorial/v/scale-of-the-galaxy?utm_source=YT&utm_medium=Desc&utm_campaign=cosmologystronomy

Cosmology & Astronomy on Khan Academy: The Earth is huge, but it is tiny compared to the Sun (which is super huge). But the Sun is tiny compared to the solar system which is tiny compared to the distance to the next star. Oh, did we mention that there are over 100 billion stars in our galaxy (which is about 100,000 light years in diameter) which is one of hundreds of billions of galaxies in just the observable universe (which might be infinite for all we know). Don't feel small. We find it liberating. Your everyday human stresses are nothing compared to this enormity that we are a part of. Enjoy the fact that we get to be part of this vastness!

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 Cosmology & Astronomy channel: https://www.youtube.com/channe....l/UChNPnEkW8LYZ5Rwi8
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

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

Stepping it up a notch, our solid is now defined in terms of two separate 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-shell-method/e/volumes-of-solids-of-revolution-by-shells?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-shell-method/v/part-2-of-shell-method-with-2-functions-of-y?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-shell-method/v/calculating-integral-with-shell-method?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

From the 3rd to the 5th centuries, the Roman Empire gets divided and less stable. The Western Roman Empire considered to end in 476 with control of Italy by Odoacer.

Watch the next lesson: https://www.khanacademy.org/hu....manities/world-histo

Missed the previous lesson? Watch here: https://www.khanacademy.org/hu....manities/world-histo

World History on Khan Academy: From the earliest civilizations to the modern world, geography, religion, trade, and politics have bound peoples and nations together — and torn them apart. Take a journey through time and space and discover the fascinating history behind the complex world we inhabit today.

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: https://www.youtube.com/subscr....iption_center?add_us

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

Determining the eigenvalues of a 3x3 matrix

Watch the next lesson: https://www.khanacademy.org/math/linear-algebra/alternate_bases/eigen_everything/v/linear-algebra-eigenvectors-and-eigenspaces-for-a-3x3-matrix?utm_source=YT&utm_medium=Desc&utm_campaign=LinearAlgebra

Missed the previous lesson?
https://www.khanacademy.org/math/linear-algebra/alternate_bases/eigen_everything/v/linear-algebra-finding-eigenvectors-and-eigenspaces-example?utm_source=YT&utm_medium=Desc&utm_campaign=LinearAlgebra

Linear Algebra on Khan Academy: Have you ever wondered what the difference is between speed and velocity? Ever try to visualize in four dimensions or six or seven? Linear algebra describes things in two dimensions, but many of the concepts can be extended into three, four or more. Linear algebra implies two dimensional reasoning, however, the concepts covered in linear algebra provide the basis for multi-dimensional representations of mathematical reasoning. Matrices, vectors, vector spaces, transformations, eigenvectors/values all help us to visualize and understand multi dimensional concepts. This is an advanced course normally taken by science or engineering majors after taking at least two semesters of calculus (although calculus really isn't a prereq) so don't confuse this with regular high school algebra.

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 Linear Algebra channel: https://www.youtube.com/channe....l/UCGYSKl6e3HM0PP7QR
Subscribe to KhanAcademy: https://www.youtube.com/subscr....iption_center?add_us

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/hu....manities/world-histo

Thinking about how the Industrial Revolution(s) and capitalism helped catalyze far-flung imperialism during the 1800s.


World History on Khan Academy: From prehistory to today, this course covers the human events that have shaped our planet.

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: https://www.youtube.com/subscr....iption_center?add_us

Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/ma....th/algebra/x2f8bb115

Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/precalculus/seq_induction/seq_and_series/e/arithmetic_sequences_1?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus

Watch the next lesson: https://www.khanacademy.org/math/precalculus/seq_induction/seq_and_series/v/arithmetic-sequences?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus

Missed the previous lesson?
https://www.khanacademy.org/math/precalculus/seq_induction/proof_by_induction/v/alternate-proof-to-induction-for-integer-sum?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus

Precalculus on Khan Academy: You may think that precalculus is simply the course you take before calculus. You would be right, of course, but that definition doesn't mean anything unless you have some knowledge of what calculus is. Let's keep it simple, shall we? Calculus is a conceptual framework which provides systematic techniques for solving problems. These problems are appropriately applicable to analytic geometry and algebra. Therefore....precalculus gives you the background for the mathematical concepts, problems, issues and techniques that appear in calculus, including trigonometry, functions, complex numbers, vectors, matrices, and others. There you have it ladies and gentlemen....an introduction to precalculus!

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 Precalculus channel:
https://www.youtube.com/channe....l/UCBeHztHRWuVvnlwm2
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

Today on Circle Time, we welcome Teacher Naomi and her son Noah to explain the topic of justice and fairness to children. Listen to Teacher Naomi’s story about fairness in her family, and how thinking of others can result in the best outcome for everyone. Read and play about fairness and taking turns with Caroline and Sophie. See drawings of Khan Kids characters. We love sharing your art!

This video is the third in a series that explains the values of diversity, race, and justice to young children. Our special guest, Naomi O’Brien, is a teacher, author, mother, and advocate for social justice. The series is aligned with the guidelines for anti-bias education from the National Association for the Education of Young Children. NAEYC curriculum goals include helping to develop a child’s positive personal identity, empathy towards others, and the awareness of fairness.⁣ Learn more about Naomi at https://readlikearockstarteaching.com/.

If you or your child would like to be a guest on Circle Time, please send your submissions to our team. We enjoy sharing artwork, photos, and videos during Show & Tell on Circle Time: http://khan.co/KhanKids-SubmitYourArt.

Circle Time premieres every other week. Remember to subscribe and hit the notification button for reminders!

Learn more about Khan Academy Kids, our free educational app for children ages 2-7, at http://www.khankids.org.

Available on Apple, Google Play, and Amazon app stores:

http://khan.co/KhanKids-YT-Apple
http://khan.co/KhanKids-YT-Google
http://khan.co/KhanKids-YT-Amazon

Find all of our Circle Time videos on our Circle Time Playlist! http://khan.co/KhanKids-CircleTimePlaylist.

Questions or ideas for Circle Time? Reach our team at khankids@khanacademy.org.

Get your free trial of MagellanTV here: https://try.magellantv.com/simplehistory It's an exclusive offer for our viewers: an extended, month-long trial, FREE. MagellanTV is a new kind of streaming service run by filmmakers with 2,000+ documentaries! Check out our personal recommendation and MagellanTV’s exclusive playlists: https://www.magellantv.com/explore/history



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.

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


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https://twitter.com/SimpleHistoryYT


Credit:
Created by Daniel Turner
Writer: Dejan Milivojevic
Narrator:
Bryan 'Lazlo' Beauregard

Music Credit:
"Drums of the Deep", "Asian Drums" - Vadodara by Kevin MacLeod is licensed under a Creative Commons Attribution licence (https://creativecommons.org/licenses/by/4.0/)
Source: http://incompetech.com/music/r....oyalty-free/index.ht
Artist: http://incompetech.com/

Sources
Larsen, Stanley R., and James Lawton Collins. Allied Participation in Vietnam. Dept. of the Army, 1975.

Rottman, Gordon L., and Adam (illustrator) Hook. Vietnam War Us & Allied Combat Equipments. Bloomsbury Publishing Plc, 2017.

Thank you to MPL for sponsoring this video. Download the MPL App now for a $5 sign-up bonus - https://mpl.onelink.me/xNXA/SimpleHistory

Disclaimer: Terms & Conditions Apply; 18+ years only

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Stories from The Vietnam War

Brave men need no particular time or place to show their courage. In battle, it’s simply who they are, and where they are, whether they’re stone-cold sober, fueled by adrenaline, or even high on marijuana. That was precisely the case with Sergeant Peter Lemon of the U.S. Army. On April 1st, 1970, he helped defend his base against the attacking North Vietnamese soldiers even though he was under the influence of marijuana. Lemon fought them with a machine gun, an assault rifle, hand grenades, and with his bare hands. He fought so hard and bravely that he was awarded the highest decoration that could be given to an American soldier, the Medal of Honor.

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.

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:
Created by Daniel Turner (B.A. (Hons) in History, University College London)
Script: Dejan Milivojevic
Narrator:

Chris Kane
https://vocalforge.com/
Sources:

Lemon, Peter C. Beyond the Medal: A Journey from Their Hearts to Yours. Fulcrum Pub., 1997.
Above and Beyond: A History of the Medal of Honor from the Civil War to Vietnam. 1985.
Foster, Randy E. M. Vietnam Firebases: 1965-73: American and Australian Forces. Osprey, 2007.

This chemistry video tutorial explains how to identify the products of a double replacement reaction from a sentence or word problem. It covers three types of double replacement reactions: Precipitation Reactions, Acid Base Neutralization Reactions, and Gas Evolution Reactions. This video explains how to balance the molecular equation, write the total ionic equation, identify the spectator ions and write the final net ionic equation. This tutorial contains plenty of examples and practice problems.

Stoichiometry Practice Test:
https://www.youtube.com/watch?v=mP2Yg8alyR0

Solute, Solvent, & Solution:
https://www.youtube.com/watch?v=MDHlaTHbEgM

Strong & Weak Electrolytes:
https://www.youtube.com/watch?v=2U2DBWWo6nc

Molarity Practice Problems:
https://www.youtube.com/watch?v=o_iETsDSvkg

Ion Concentration In Solutions:
https://www.youtube.com/watch?v=H5S4TRAzXhQ

Dilution Problems:
https://www.youtube.com/watch?v=FPidlCmymVg

___________________________________
Types of Chemical Reactions:
https://www.youtube.com/watch?v=iIJD8RNLpS0

Solubility Rules:
https://www.youtube.com/watch?v=LnGIKtx_udE

Predicting The Products of Reactions:
https://www.youtube.com/watch?v=MYmrWHzT1oI

Activity Series of Metals:
https://www.youtube.com/watch?v=VatDpKMJ-BU

Will This Reaction Occur?
https://www.youtube.com/watch?v=ACSKrg2RBmY

Predicting Products of SR Reactions:
https://www.youtube.com/watch?v=s4OFBa7Uans

___________________________________
Double Replacement Reactions:
https://www.youtube.com/watch?v=d8vWIGf2mGE

Net Ionic Equations:
https://www.youtube.com/watch?v=0jhNouV9TNo

Writing Chemical Equations From Words:
https://www.youtube.com/watch?v=npyvZSBqyc0

Solution Stoichiometry:
https://www.youtube.com/watch?v=Ab3wfKjaWWQ

Molarity & Dilution Problems:
https://www.youtube.com/watch?v=-4E6rOkiw2I

Acid Base Neutralization Reactions:
https://www.youtube.com/watch?v=UfTJrAPjeys

____________________________________
Acid Base Titration Problems:
https://www.youtube.com/watch?v=HJvALCcKYAc

Mixture Problems:
https://www.youtube.com/watch?v=e2FAAMlAJ3c

Calculating Oxidation Numbers:
https://www.youtube.com/watch?v=j0hI-a6EWWo

Oxidation and Reduction Reactions:
https://www.youtube.com/watch?v=dF5lB7gRtcA

Balancing Redox Reactions:
https://www.youtube.com/watch?v=fdbrhQAM9Gw

Ideal Gas Law Problems:
https://www.youtube.com/watch?v=iaZ96KaQ44c

___________________________________
Final Exams and Video Playlists:
https://www.video-tutor.net/

Full-Length Videos and Worksheets:
https://www.patreon.com/MathSc....ienceTutor/collectio

Learn how to easily memorize the global winds.
Polar easterlies, westerlies, and trade winds.
Memorize the location, name, and direction that that flow.
Includes the tropical easterlies.
Use the mnemonic device Every wind together in order to help remember the global winds.

This video on Global Winds may help
https://www.youtube.com/watch?v=oCdqGkn-B1E

Learn how to calculate the surface area of a square pyramid.

Learn how to find the area of a circle.The area of a circle uses the formula is pi times radius squared.

Kingdom Mollusca Learn about snails, slugs, squid, and cuttlefish and several other invertebrates found in the phylum Mollusca. Animals in this phylum have soft bodies, many have a shell, a mantle, and a nervous system.
Some common members include snails, slugs, scallops, oysters, octopus, squid, nautilus, and cuttlefish.

Credit for the cuttlefish video:Title: Red cuttle hunting.webm
Author: John Turnbull
Date: 19 July 2014

Difference between Organic and Inorganic Compounds
Organic compounds contain carbon. There are at least four important organic compounds, lipids, proteins, carbohydrates, and nucleic acids.
Inorganic compounds do not contain carbon and usually are more simple compounds.
There are some compounds that contain carbon and are inorganic like carbon dioxide.
*
*
For more Life Science videos and summaries see,
http://www.moomoomath.com/Midd....le-School-Science-an

We hope you are enjoying our large selection of engaging core & elective K-12 learning videos. New videos are added all the time - make sure you come back often to learn more! If you'd like us to cover any additional topics, please let us know. For practice, assessment, and many interactive activities that go along with each video, as well as a teacher/parent dashboard, go to Miacademy.co for Grades K-8 or Miaprep.com for grades 9-12!

In this video, we will teach you about subordinating conjunctions.

We hope you are enjoying this video! For more in-depth learning, check out Miacademy.co (https://www.parents.miacademy.co/), an online learning platform with lessons and practice games that go along with our videos. Use coupon code VIDEOSPECIAL for a discount. Good for homeschoolers, Parents, Teachers, or anyone with kids in grades K-8.

Miacademy also offers many hands-on learning activities including a business simulation, writing in the Miacademy weekly, and creating artwork. Teaching social skills is also one of the key values at Miacademy. On the site, kids can interact safely in a moderated environment and share their artwork, videos, and ideas with each other.

In this video, you will learn about the distributive property over addition.

We hope you are enjoying our large selection of engaging core & elective K-12 learning videos. New videos are added all the time - make sure you come back often to learn more! If you'd like us to cover any additional topics, please let us know.

For practice, assessment, and many interactive activities that go along with each video, as well as a teacher/parent dashboard, go to Miacademy.co for Grades K-8 or Miaprep.com for grades 9-12!