A note to parents and students: If your student needs extra help, try re-watching the lessons on 3 letter words. Those lessons introduce the vocabulary we use in this lesson.
https://www.youtube.com/watch?v=Kl07_uTJc4Q&list=PLYrkOH2LGbfIK5td0Z3iFvA2_J-GVmIBe

Before you watch this video print these activities
Activity 4A https://www.dropbox.com/s/tn8i....gmr0zhkry6j/sounds%2
Activity 4B https://www.dropbox.com/s/067v....kakhqzzf40z/sounds%2
If you do not have access to a printer, you can read the activities off of your computer, and write the answers on a sheet of paper.

For more reading and writing lessons, you can go to iReady Reading. This link will give your student "video games" that teach them reading and typing skills.
https://login.i-ready.com/
The school should have sent you a username and password when the quarantine started. If you need help logging in, or if you have any other questions, please email me at wmenta@tacoma.k12.wa.us

By Ruslana Westerlund Ed.D. (2 September 2021) A brief description of the WIDA 2020 Standards by focusing on the main components of the framework with a closer look at the Language Expectations.

TEAC731 Responsive Pedagogy for ELs
Education
Graduate School
Education K-12 (M.A.)
Graduate School
M.A. Education K-12
Ruslana Westerlund

https://www.bethel.edu/admissions/

Decimal to Fraction | Bar Question Trick | How to convert bar questions into fraction

Hello Friends
In this video following points will be covered
1.Decimal to Fraction Trick
2.How to solve bar questions
3. How to convert recurring decimal into fraction
4. Best trick way to convert bar questions into fraction
5. Bar Question Trick
6. Maths trick by imran sir



Amazing Maths Puzzles
https://www.youtube.com/playli....st?list=PLNLFUrpFioa

#imransirmaths #decimal_to_fraction #mathstrick #Barquestions

_________________________________________________

You Can Follow me on Instagram
https://www.instagram.com/imransirmaths/

You Can Join Our Telegram Group
https://t.me/imransirmaths
________________________________________________

Clock Reasoning Tricks Playlist
https://youtube.com/playlist?l....ist=PLNLFUrpFioasitU
_________________________________________________

Here you all will get many more tricks which are going to help in your Competitive Exams
Counting Figures Tricks
https://www.youtube.com/playli....st?list=PLNLFUrpFioa

Simplification Tricks
https://www.youtube.com/playli....st?list=PLNLFUrpFioa

Algebra Shortcut Tricks
https://www.youtube.com/playli....st?list=PLNLFUrpFioa

Calendar Tricks
https://www.youtube.com/playli....st?list=PLNLFUrpFioa

Reasoning Tricks
https://www.youtube.com/playli....st?list=PLNLFUrpFioa

Time And Work Trick
https://www.youtube.com/playli....st?list=PLNLFUrpFioa

Profit And Loss Tricks
https://www.youtube.com/playli....st?list=PLNLFUrpFioa

Dice Reasoning Trick
https://www.youtube.com/playli....st?list=PLNLFUrpFioa

Boat and Stream Tricks
https://www.youtube.com/playli....st?list=PLNLFUrpFioa

Pipe And Cistern Tricks
https://www.youtube.com/playli....st?list=PLNLFUrpFioa

________________________________________________
Amazing Maths Puzzles
https://www.youtube.com/playli....st?list=PLNLFUrpFioa
________________________________________________
Subscribe to our 2nd Channel
https://www.youtube.com/channe....l/UCI8bd1pC6OD_KRNFQ
________________________________________________

Thanks For Watching
#imransirmaths

The field of computer science summarised. Learn more at this video's sponsor https://brilliant.org/dos

Computer science is the subject that studies what computers can do and investigates the best ways you can solve the problems of the world with them. It is a huge field overlapping pure mathematics, engineering and many other scientific disciplines. In this video I summarise as much of the subject as I can and show how the areas are related to each other.

#computer #science #DomainOfScience

You can buy this poster here:
North America: https://store.dftba.com/produc....ts/map-of-computer-s
Everywhere else: https://www.redbubble.com/people/dominicwalliman/works/27929629-map-of-computer-science?p=poster&finish=semi_gloss&size=small
French Version: https://www.redbubble.com/peop....le/dominicwalliman/w
Spanish Version: https://www.redbubble.com/peop....le/dominicwalliman/w
Get all my other posters here: https://www.redbubble.com/people/dominicwalliman

A couple of notes on this video:
1. Some people have commented that I should have included computer security alongside hacking, and I completely agree, that was an oversight on my part. Apologies to all the computer security professionals, and thanks for all the hard work!
2. I also failed to mention interpreters alongside compilers in the complier section. Again, I’m kicking myself because of course this is an important concept for people to hear about. Also the layers of languages being compiled to other languages is overly convoluted, in practice it is more simple than this. I guess I should have picked one simple example.
3. NP-complete problems are possible to solve, they just become very difficult to solve very quickly as they get bigger. When I said NP-complete and then "impossible to solve", I meant that the large NP-complete problems that industry is interested in solving were thought to be practically impossible to solve.

And free downloadable versions of this and the other posters here. If you want to print them out for educational purposes please do! https://www.flickr.com/photos/95869671@N08/

Thanks so much to my supporters on Patreon. If you enjoy my videos and would like to help me make more this is the best way and I appreciate it very much. https://www.patreon.com/domainofscience

I also write a series of children’s science books call Professor Astro Cat, these links are to the publisher, but they are available in all good bookshops around the world in 18 languages and counting:
Frontiers of Space (age 7+): http://nobrow.net/shop/profess....or-astro-cats-fronti
Atomic Adventure (age 7+): http://nobrow.net/shop/profess....or-astro-cats-atomic
Intergalactic Activity Book (age 7+): http://nobrow.net/shop/profess....or-astro-cats-interg
Solar System Book (age 3+, available in UK now, and rest of world in spring 2018): http://nobrow.net/shop/profess....or-astro-cats-solar-
Solar System App: http://www.minilabstudios.com/....apps/professor-astro
And the new Professor Astro Cat App: https://itunes.apple.com/us/ap....p/galactic-genius-wi

Find me on twitter, Instagram, and my website:
http://dominicwalliman.com
https://twitter.com/DominicWalliman
https://www.instagram.com/dominicwalliman
https://www.facebook.com/dominicwalliman

Quick StreamYard test. Please join us later today from 2-2:30P Eastern = 11-11:30A Pacific!

Learn more counting, addition, and subtraction lessons in the FREE Khan Academy Kids app! https://go.learn.khanacademy.o....rg/khanacademy/YouTu

Peck uses a number line to count backward starting from the number ten. Great job, Peck!

Visit us at http://www.khankids.org to learn more about Khan Academy Kids, a free educational app for preschool through 2nd grade available on Apple, Google Play, and Amazon app stores.

You can also access other videos on our Addition and Subtraction playlist here: http://khan.co/KhanKids-AdditionSubtraction

Subscribe to our channel for more videos like this.

Questions? Reach our team at khankids@khanacademy.org.

Double Digit Multiplication common of what fourth graders are learning. This is a straight forward animation video.

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

Intuition behind the triangle inequality theorem

Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/geometry/basic-geometry/triangle_inequality_theorem/e/triangle_inequality_theorem?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry

Watch the next lesson: https://www.khanacademy.org/math/geometry/basic-geometry/koch_snowflake/v/koch-snowflake-fractal?utm_source=YT&utm_medium=Desc&utm_campaign=Geometry

Missed the previous lesson?
https://www.khanacademy.org/math/geometry/basic-geometry/perimeter_area_tutorial/v/challenging-perimeter-problem?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

#practiceREADINGatHOME
#EnglishWORDS
#WORDSwithLONGaSOUNDS
#EnglishGRADE1
#ENGLISHgrade2
#BASICenglishWORDS
#PracticeREADINGenglish
#TutorsaPAGBASA
#ReadingVideoTutorial
#Learn how to read English

Grab my free Workspace Toolkit: https://academy.jeffsu.org/workspace-toolkit?utm_source=youtube&utm_medium=video&utm_campaign=146

Try Gemini yourself: g.co/g1referral/9V6A6K8N

🔍 In this video, we unravel the layers of AI, Machine Learning, Deep Learning, and their applications in tools like #ChatGPT and Google #Bard

We first go through how AI is a broad field of study that encompasses #MachineLearning as a sub-field.

We then break down Machine Learning into supervised and unsupervised models, using real-world examples to illustrate their functions and differences.

We move deeper into Deep Learning: Learn about artificial neural networks and the power of semi-supervised learning in applications like fraud detection in banking.

Then we delve into Generative AI, differentiating it from discriminative models and demonstrating its capabilities in creating new, innovative outputs.

Finally we walk through Large Language Models (LLMs) and uncover the significance of LLMs in AI, their pre-training processes, and their customization for specific industry applications

*TIMESTAMPS*
00:00 Google’s AI Course in 10 Minutes
00:38 What is Artificial Intelligence?
01:27 What is Machine Learning?
03:28 What is Deep Learning?
05:15 What is Generative AI?
07:05 What are Large Language Models?

*RESOURCES I MENTION IN THE VIDEO*
Google’s full course: https://www.cloudskillsboost.g....oogle/course_templat
Grab my free Workspace Toolkit: https://academy.jeffsu.org/workspace-toolkit?utm_source=youtube&utm_medium=video&utm_campaign=146

*MY FAVORITE GEAR*
🎬 My YouTube Gear - https://www.jeffsu.org/yt-gear/
🎒 Everyday Carry - https://www.jeffsu.org/my-edc/

*MY TOP 3 FAVORITE SOFTWARE*
❎ CleanShot X - https://geni.us/cleanshotx
✍️ Skillshare - https://geni.us/skillshare-jeff
📖 Readwise - https://readwise.io/jeffsu/

*BE MY FRIEND:*
📧 Subscribe to my Productivity newsletter - https://www.jeffsu.org/productivity-ping/
📸 Instagram - https://instagram.com/j.sushie
🤝 LinkedIn - https://www.linkedin.com/in/jsu05/

*👨🏻‍💻 WHO AM I:*
I'm Jeff, a tech professional trying to figure life out. What I do end up figuring out, I share!

_PS: Some of the links in this description are affiliate links I get a kickback from and my opinions are my own and may not reflect that of my employer_ 😇

A demonstration of how to use Google Sheets to calcuate basic descriptive statistics for a data set

In which John Green teaches you about the presidency of Andrew Jackson So how did a president with astoundingly bad fiscal policies end up on the $20 bill? That's a question we can't answer, but we can tell you how Jackson got to be president, and how he changed the country when he got the job. Jackson's election was more democratic than any previous presidential election. More people were able to vote, and they picked a doozie. Jackson was a well-known war hero, and he was elected over his longtime political enemy, John Quincy Adams. Once Jackson was in office, he did more to expand executive power than any of the previous occupants of the White House. He used armed troops to collect taxes, refused to enforce legislation and supreme court legislation, and hired and fired his staff based on support in elections. He was also the first president to regularly wield the presidential veto as a political tool. Was he a good president? Watch this video and draw your own conclusions.

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. One of Andrew Jackson's most lasting and memorable policies was that of Indian removal: https://www.commonlit.org/text....s/andrew-jackson-s-s
Jackson’s promotion of this cause led to the infamous Trail of Tears: https://www.commonlit.org/text....s/excerpt-from-trail

Chapters:
Introduction: the Age of Jackson 00:00
Democracy in the United States 0:32
Economics during the Era of Good Feelings 1:56
The Monroe Doctrine 2:48
John Quincy Adams 3:17
The Missouri Compromise 3:56
Martin Van Buren, "The Little Magician", and other Presidential Nicknames 4:58
Andrew Jackson's Presidential Campaign 6:16
The Democratic Party 7:15
The Whig Party 7:41
Jackson's Tariffs 8:28
The Indian Removal Act & The Trail of Tears 9:37
American Banking Under Jackson 10:40
Mystery Document 10:56
Jackson Ends the Second U.S. Bank 12:00
Inflation and the Panic of 1837 12:53
Legacy of the Age of Jackson 13:54
Credits 14:35

Crash Course is on Patreon! You can support us directly by signing up at http://www.patreon.com/crashcourse

Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashCourse
Twitter - http://www.twitter.com/TheCrashCourse
Instagram - https://www.instagram.com/thecrashcourse/

CC Kids: http://www.youtube.com/crashcoursekids

PBS Member Stations rely on viewers like you. To support your local station, go to: http://to.pbs.org/DonateOKAY
↓ More info and sources below ↓

Develop your own science truthiness detector!

My favorite places to get science news: http://bit.ly/1dpkiI4 (Now as an RSS/OPML file thanks to @doodlewhale!! https://dl.dropboxusercontent.....com/u/8365578/feedly )
Also check out my public Twitter lists for more: http://www.twitter.com/jtotheizzoe

Those were all real headlines at the beginning. Proof:
Universe hologram: http://huff.to/1beW6W8
Chimp/pig humans: http://dailym.ai/1bSQNit
Popcorn: http://huff.to/IYEUha
LHC/black hole: http://bit.ly/1ce3VRX
Squeezing breasts: http://bit.ly/JLTV6L
Alcohol = heroin: http://cbsn.ws/19ftjXx
Calamari pregnancy: http://bit.ly/1cU5VgQ
Autism and freeways: http://bit.ly/1beWtQo
Cats: http://bit.ly/J80hME
Semen as antidepressant: http://bit.ly/18ZNIwT
Quantum afterlife: http://dailym.ai/IYFYBH

More reading:

How to read about science: http://www.theatlantic.com/hea....lth/archive/2013/12/
This is a science news article: http://www.theguardian.com/sci....ence/the-lay-scienti
Real science and health news: http://scienceblogs.com/starts....withabang/2012/02/07
Baloney detection kit: http://www.brainpickings.org/i....ndex.php/2012/03/16/
Do the Double X double take: http://www.doublexscience.org/....science-health-medic
PHD Comics: Science news cycle: http://www.phdcomics.com/comic....s/archive.php?comici

Music: Podington Bear - "Pretty Build"

Joe Hanson - Host and writer
Produced for PBS Digital Studios
-----------
Join us on Patreon!
https://patreon.com/itsokaytobesmart

Twitter
http://www.twitter.com/DrJoeHanson
http://www.twitter.com/okaytobesmart

Instagram
http://www.instagram.com/DrJoeHanson
http://www.instagram.com/okaytobesmart

Merch
https://store.dftba.com/collec....tions/its-okay-to-be

Facebook
https://www.facebook.com/itsokaytobesmartpbs/

Thousands of parents and educators are turning to the kids’ learning app that makes real learning truly fun. Try Kids Academy with
3-day FREE TRIAL! https://bit.ly/2GuGyL2

Solving division word problems can be a tricky task. Let Kids Academy help with an easy-to-understand video tutorial that features a real teacher to explain every step! While watching, your child will view a detailed teacher-led demonstration to help support a deeper understanding of division. After each problem, your child will review how to check answers using skip counting!

Watching this video will increase your child’s:

- Understanding of division using pictures and realistic scenarios
- Ability to double check answers for accuracy

Show this video to grow your child’s confidence and independence in completing and checking tough division word problems!

#TalentedAndGifted #LearnWithKidsAcademy

Kids Academy Talented and Gifted Program for kids aged 2-10:

App Store: https://smart.link/59833db06a6b8
Google Play: https://smart.link/597210af6eb83

*****

Subscribe to our channel: https://goo.gl/iG2Bdr

Connect with us on :

Our site: https://www.kidsacademy.mobi/
Facebook: https://www.facebook.com/KidsAcademyCompany
Twitter: https://twitter.com/KidsAcademyCo

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

For its proponents, NATO’s Article V is a brotherhood of musketeers - an armed attack against one is an attack against all. For its opponents, Article V is a means of ensuring NATO’s unhindered expansion. The purpose and significance has varied immensely since its ratification in 1949, especially after having been first triggered in 2001, continuing its omnipresence in the minds of world leaders today.

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


Show Created by Daniel Turner (B.A. (Hons) in History, University College London)

Script Writer: Josh Sippie

Narrator: Bryan 'Lazlo' Beauregard

Pruitt, Sarah. "What Is NATO’s Article 5?" Last modified Mar 14, 2022. History.

"Collective defence and Article 5." Last modified Sep 20, 2022. NATO.

Yon Ebright, Katherine. "NATO’s Article 5 Collective Defense Obligations, Explained." Last updated Nov 15, 2022. Brennan Center.

Become a Simple History member: https://www.youtube.com/simplehistory/join
Support us on Patreon: https://www.patreon.com/simplehistory

Stanley’s African adventures can really only be appreciated if one looked at maps he had to rely on to survive. If you looked up Andriveau-Goujon’s ‘Carte générale de l’Afrique’ (1856) as an example, you will see a different Africa one with vast empty spaces. To be sure, it was a marked improvement to sixteenth century maps who used cyclops and giant elephants to hide their lack of knowledge, but yet you can still find fictional gigantic lakes and mountain ranges such as Lake Tanganyika and the Mountains of the Moon. Then, imagine you are tasked to find a single person in one of these entirely blank regions, while you also need to convince over a hundred strangers with you that this endeavor will be an undoubtedly dazzling success. Learn how Stanley even reached such an opportunity, having been born in Wales and disowned by his parents, to soon globetrotting and travel writing with his pockets continuously filled by the wealthiest of patrons.

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)

Narrator:

Chris Kane
https://vocalforge.com/

Bibliography

Baumeister, Roy F. and John Tierney. “Henry Morton Stanley’s Unbreakable Will.” Accessed July 12, 2022. Smithsonian Magazine.

Jeal, Tim. The Impossible Life of Africa’s Greatest Explorer. New Haven: Yale University Press, 2007.

Middleton, Dorothy, Adam Augustyn, Aakanksha Gaur, Gloria Lotha, Deepti Mahajan, Amy McKenna, Chelsey Parrott-Sheffer, and Shiveta Singh. “Henry Morton Stanley.” Last modified May 06, 2022. Britannica.com.

Newman, James L. Imperial Footprints: Henry Mortan Stanley’s African Adventure. Dulles, Virginia: Potomac Books, 2004.

Stanley, Henry Morton. How I Found Livingstone. London: Marston & Company, 1871.

Stanley, Henry Morton. Through The Dark Continent. New York: Harper & Brothers, 1878.

Play Iron Order for FREE on PC or Mobile 💥 https://play.ironorder1919.com/ULF0/SimpleHistory
Receive an Amazing New Player Pack, only available for the next 30 days! Thanks to Iron Order for sponsoring

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: Conan White
Narrator:

Chris Kane
https://vocalforge.com/

Sources:
Mark V Tank
By David Fletcher

Tanks: An Illustrated History of Their Impact
By Spencer Tucker

British Battle Tanks: World War I to 1939
By David Fletcher

Tank Hunter: World War One Craig Moore

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

Watch the next lesson: https://www.khanacademy.org/math/algebra2/polynomial_and_rational/factoring-higher-deg-polynomials/v/factoring-special-products-2?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraII

Missed the previous lesson?
https://www.khanacademy.org/math/algebra2/polynomial_and_rational/factoring-higher-deg-polynomials/v/factoring-sum-of-cubes?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!

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/channe....l/UCsCA3_VozRtgUT7wW
Subscribe to Khan Academy: https://www.youtube.com/subscr....iption_center?add_us

Practice this lesson yourself on KhanAcademy.org right now:
https://www.khanacademy.org/math/precalculus/precalc-matrices/matrix_multiplication/e/multiplying_a_matrix_by_a_matrix?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus

Watch the next lesson: https://www.khanacademy.org/math/precalculus/precalc-matrices/matrix_multiplication/v/multiplying-a-matrix-by-a-matrix?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus

Missed the previous lesson?
https://www.khanacademy.org/math/precalculus/precalc-matrices/Basic_matrix_operations/v/transpose-of-a-matrix?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