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請訂閱我們的頻道、點讚、分享，鼓勵我們分享更多有用又有趣的知識。
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Welcome to watch our videos
歡迎觀看我們所創作的的其他影片
1）Basic Conversation 會話
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

2) Grammar 語法
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

3）English Speaking
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

4）Funny Jokes 笑話
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

5）Vocabulary 詞彙
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

6）English Idioms 英語成語
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

7）Revision Exercise 重温練習
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

8）Fun Games 趣遊戲味
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

9） Tongue Twister 繞口令
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

10）Writing a composition 作文
https://www.youtube.com/playli....st?list=PLPoPxSDq_eP

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Daily revision 3_simple present/past tense_BGM info
Candy by Sakura Girl | https://soundcloud.com/sakuragirl_official
Music promoted by https://www.chosic.com/free-music/all/
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This video introduces Chapter 1 Part 1 Citizenship to the Secondary 3 Express and Normal (Academic) students who are studying Social Studies for the Singapore 2016 new syllabus. This topic is usually taught in Secondary 3 where students learn about 4 different ways to become Singapore citizens.

The video is divided into 5 sections.
0:00 Introduction
1:04 Descent
1:24 Country of Birth
1:32 Marriage
2:13 Naturalization/ Registration

You can view the following slides below.
https://www.slideshare.net/goh....bangrui/social-studi

Thank you and like and pass it on if it helps you.

Credit to owner: -

This site may contain copyrighted material the use of which has not always been specifically authorized by the copyright owner. We are making such material available in an effort to advance our understanding of environmental, political, human rights, economic, democracy, scientific, and social justice issues, etc. we believe this constitutes a ‘fair use’ of any such copyrighted material as provided for in section 107 of the US Copyright Law.
In accordance with Title 17 U.S.C. Section 107, the material on this site is distributed without profit.

COPYRIGHT DISCLAIMER:-

Copyright Disclaimer under section 107 of the Copyright Act of 1976, allowance is made for “fair use” for purposes such as criticism, comment, news reporting, teaching, scholarship, education and research. Fair use is a use permitted by copyright statute that might otherwise be infringing.”

This lesson gives a brief introduction and explanation of nouns and pronouns along with their function. Your Host Mr. Pencil narrates with wonderful backgrounds and gentle music. Its grammar classroom style. _____ Welcome to the Complete K12 Essentials Youtube channel! ____
__________________________________________________________________________
_____ Please “LIKE” and “SUBSCRIBE” to this channel.______ New videos posted every Tuesday. _____ https://youtube.com/channel/UC...._XYRUNkxt9636TWXdgJ9 _________________
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_____ 3rd Grade English grammar ___ parts of speech Nouns and Pronouns
___________________________________________________________________________
_____ NEW : We have introduced interactive worksheets, puzzles, and quizzes on www.CompleteK12Essentials.com We have quick links to seamlessly move from our website to our Youtube channel.

Timecodes

0:00 Intro
0:12 Noun
0:54 Pronoun

Martin Cisneros - Twitter: https://twitter.com/sjsulurie - Director of Technology Services in the Berryessa Union School District, led this conversation:

Need to enhance your distance learning game? Are your students tired of digital sit and get, consumption programs, and bored with just text activities? Then this learning experience if for you! This session involves teachers everywhere to use technology to engage learners and amplify the learning experience in classrooms. Learn to focus on pedagogy first, and then CREATE LEARNING EXPERIENCES on the purposeful and engaging use of technology!

Intended audience: Those who teach grades K-12

The SJSU Lurie College of Education has established this free K-12 Online Teaching Academy to support pre-service teacher candidates and current teachers to strengthen their online teaching skills and adapt to our current circumstances. Learn more about the academy at sjsu.edu/education/k12-academy

Connect with Lurie College at https://linktr.ee/sjsulurie to receive more news about academic and student life!

This calculus video tutorial provides a basic introduction into the quotient rule for derivatives. It explains how to find the derivatives of fractions and rational functions.

Derivatives - Fast Review: https://www.youtube.com/watch?v=5yfh5cf4-0w&t=1s

Equation of the Tangent Line:
https://www.youtube.com/watch?v=5NyeGzbBJQM

Simplifying Derivatives:
https://www.youtube.com/watch?v=3lUOtjkqfQo

Derivatives - The Product Rule - f*g:
https://www.youtube.com/watch?v=17X5g9QArTc

Derivatives - Triple Product Rule - f*g*h:
https://www.youtube.com/watch?v=cUXW9cj_CpE

Derivatives - Quadruple Product Rule - f*g*h*k:
https://www.youtube.com/watch?v=U8u0VGvFgV0

___________________________________
Derivatives - The Quotient Rule:
https://www.youtube.com/watch?v=8jVDEcQ0wXk

Derivatives - The Chain Rule:
https://www.youtube.com/watch?v=HaHsqDjWMLU

Chain Rule With Trig Functions:
https://www.youtube.com/watch?v=ZyWHTWJ2XpM

Chain Rule - Harder Examples:
https://www.youtube.com/watch?v=_1LTThkXvSw

Chain Rule - Triple SQRT(x):
https://www.youtube.com/watch?v=BTuGkPj7ymE

_________________________________
Derivatives - Composite Functions:
https://www.youtube.com/watch?v=vNXjMTv4vHs

Implicit Differentiation:
https://www.youtube.com/watch?v=xbviQHhU1rA

Derivatives - Inverse Trig Functions:
https://www.youtube.com/watch?v=KbYW9FDm-Zk

Derivatives - Exponential Functions:
https://www.youtube.com/watch?v=yg_497u6JnA

Derivatives - Logarithmic Functions:
https://www.youtube.com/watch?v=Dp9sgIvaKPk

___________________________________
Final Exams and Video Playlists:
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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

Your Community | Types of Community | Kids Academy

Your Community | Types of Community | Kids Academy
Does your kid know about the community? Do you know how to explain it to them? Well, don’t worry this tutorial will help you explain the concept of community to your kid in simple and easy words.

What is a community?

A community is a place where people live together. They interact with each other and live by knowing each other. It is very important for the kid to understand the importance of living in a community and what is the actual meaning of living in a community.

Types of communities

There are many different types of communities. In this lesson, we will cover the three most common types.

1. Urban
2. Suburban
3. Rural

Urban community

An urban community is large and highly populated. This means that a big number of people live there. Tall buildings, skyscrapers, heavy traffic, and transportation are key identification of an urban community. For example, New York City is an urban community. In urban communities, you will find everyone busy with their tasks, with heavy traffic and a lot of hustle and bustle. That is why New York is called the city that never sleeps.

It remains busy all day and all night. Most people living in apartment buildings while very few live in homes. You will see a lot of apartments and homes packed with each other due to the high population.

Suburban community

A suburban community is located near a city but not as populated as an urban community. There are less traffic and smaller buildings. Some people travel to the nearby urban for work, which is called commuting. Many people live in homes which are very beautifully made. They have amenities such as large backyards and garages.

Rural community

A rural community has very few people and buildings. It mainly consists of farmland. There is more nature in the rural community, you will see animals, trees, grassy lands, and pure water. people live in small houses that are spaced far apart even miles away. It has a very peaceful environment with no honking and people rushing and heavy traffic.

So, this was a small lesson on communities. In which community would you like to live?


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This is a replay of Education Week's webinar, "English-Learners and the Common Core: New Instructional Strategies." Veteran teachers Larry Ferlazzo and Katie Hull Sypnieski offer guidance on integrating the common-core standards into ELL instruction. ____________________

Want more stories about schools across the nation, including the latest news and unique perspectives on education issues? Visit www.edweek.org.

About Education Week:
Education Week is America’s most trusted source of independent K-12 education news, analysis, and opinion. Our work serves to raise the level of understanding and discourse about education among school and district leaders, policymakers, researchers, teachers, and the public. Published by the nonprofit organization Editorial Projects in Education, Education Week has been providing award-winning coverage of the field for over 35 years.

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To license video footage from Editorial Projects in Education please contact the Education Week Library at library@epe.org.

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

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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

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Another separable differential equation example.

Watch the next lesson: https://www.khanacademy.org/math/differential-equations/first-order-differential-equations/modeling-with-differential-equations/v/particular-solution-given-initial-conditions-for-population?utm_source=YT&utm_medium=Desc&utm_campaign=DifferentialEquations

Missed the previous lesson?
https://www.khanacademy.org/math/differential-equations/first-order-differential-equations/separable-equations/v/separable-differential-equations-2?utm_source=YT&utm_medium=Desc&utm_campaign=DifferentialEquations

Differential Equations on Khan Academy: Differential equations, separable equations, exact equations, integrating factors, homogeneous equations.

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 Differential Equations channel:: https://www.youtube.com/channe....l/UCxSQHGkaDv8UKXE0T
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English Grammar Course FULL Quiz (250 Questions): https://shawenglish.com/quizze....s/full-basic-english

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Esther is an American teacher from California.
It is the best video course for beginner students. Esther teaches English articles, pronouns, prepositions, adjectives, etc. This video is perfect to help you improve your English speaking, listening, writing, and reading.
0:00 - Beginner English Introduction
0:57 - Vowels and Consonants
5:57 - a/an + Noun
11:26 - Singular / Plural Nouns
20:45 - Subjective Pronouns
26:53 - Subjective Pronouns + Be
33:44 - Subjective Pronouns + Be + Not 38:43 - 'be' Verb Pronoun Questions
49:54 - Review #1 - Subjective Pronouns 53:12 - Grammar Check Up #1
58:55 - What + Be Verb Questions
1:03:43 - This / That
1:07:32 - These / Those
1:11:58 - This / That / These / Those Practice
1:13:47 - Possessive Adjectives
1:21:46 - Possessive Pronouns
1:27:04 - Grammar Check Up #2
1:34:16 - Articles + Noun
1:40:47 - Prepositions: in / on / under 1:45:44 - Beginner Adjectives
1:50:13 - Grammar Check Up #3
1:57:41 - Have / Has
2:01:59 - Don't / Doesn't Have Questions 2:06:26 - Do / Does Have Questions
2:10:42 - Grammar Check Up #4
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Science fiction has certainly familiarized the world with the concept of artificial intelligence. But outside of Hollywood…what is A.I. and what can it actually do?

𝐀𝐛𝐨𝐮𝐭 𝐃𝐮𝐤𝐞 𝐔𝐧𝐢𝐯𝐞𝐫𝐬𝐢𝐭𝐲
Established in 1924 in Durham, North Carolina, Duke University is one of the world’s leading institutions for education, research, and patient care.

Subscribe ➡️ https://www.youtube.com/@dukeuniversity

𝐅𝐨𝐥𝐥𝐨𝐰 #𝐃𝐮𝐤𝐞𝐔𝐧𝐢𝐯𝐞𝐫𝐬𝐢𝐭𝐲
Homepage: https://duke.edu/
News: https://today.duke.edu/
X (Formerly Twitter): https://twitter.com/DukeU
Instagram: https://www.instagram.com/dukeuniversity
Facebook: https://www.facebook.com/DukeUniv
LinkedIn: https://www.linkedin.com/school/duke-university/

#artificialintelligence #ai

This video is brought to you by Aloud. Learn more about the video translation tool that’s breaking the language barrier: https://aloud.area120.google.com/?utm_source=youtube&utm_medium=creator&utm_campaign=kg

The Kings and Generals animated historical documentary series on the ancient civilizations continues with a video on the evolution of the Indo-European Languages, as we give a summary of how this language family formed and how the languages belonging to each are still connected to each other:

Arabia Before Islam: Religion, Society, Culture: https://youtu.be/07OsSSt0ytc
Vandals: https://youtu.be/-IpbeEW6I9Y
How Rome Conquered Greece: https://youtu.be/v5q1rerf-qw
Did the Trojan War Really Happen: https://youtu.be/12eHJL2yRtk
Demosthenes: https://youtu.be/ABS1iepXG0U
Ancient Greek Politics and Diplomacy: https://youtu.be/MVnp4NilDLI
Pyrrhic Wars: https://youtu.be/2QBA6ZPmj3Q
Ancient Macedonia before Alexander the Great and Philip II: https://youtu.be/FXX1FVYysjQ
Diplomatic Genius of Philip of Macedon: https://youtu.be/yVTrkESkuTw
Etruscans: https://youtu.be/FkySjRwUteE
Bosporan Kingdom: https://youtu.be/ltikjXUiAC4
Ancient Greek State in Bactria: https://youtu.be/IQATsepKoLE
The Greco-Chinese War Over the Heavenly Horses: https://youtu.be/g6Rphg_lwwM
Ancient Greek Kingdom in India: https://youtu.be/ZxJk4KHZxi8
Ghaznavids: https://youtu.be/yJ91rv0xdWM
Huns: https://youtu.be/bFpQjWtpHcM
White Huns: https://youtu.be/JJWddbCUZLQ
Gokturks: https://youtu.be/BChpoa_IuQs

Yuezhi: https://youtu.be/2KdM6AlyLUY
Seljuks: https://youtu.be/P79ECnISamo

Support us on Patreon: http://www.patreon.com/KingsandGenerals or Paypal: http://paypal.me/kingsandgenerals or by joining the youtube membership: https://www.youtube.com/channe....l/UCMmaBzfCCwZ2KqaBJ We are grateful to our patrons and sponsors, who made this video possible: https://docs.google.com/docume....nt/d/1ooKPbpq0z8ciEj

The video was made by Arb Paninken, while the script was developed by Georgi Kolev. This video was narrated by Officially Devin (https://www.youtube.com/channe....l/UCU0-VII-V376zFxiR & https://www.youtube.com/channe....l/UC79s7EdN9uXX77-Ly

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Production Music courtesy of Epidemic Sound: http://www.epidemicsound.com

#Documentary #DubbedWithAloud #Civilization

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The Corinthian Helmet is one of the most iconic designs from ancient Greece taking its name from the city-state of Corinth.


Copyright: DO NOT translate and re-upload our content on Youtube or other social media.

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Credit:
Created by Daniel Turner

Narrator:

Chris Kane
https://vocalforge.com/

Music Credit:
Achilles - Strings 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:

Armies of Ancient Greece Circa 500 to 338 BC: History, Organization & Equipment
By Gabriele Esposito

The Battle of Marathon in Scholarship: Research, Theories and Controversies Since 1850 Paperback – 30 May 2014
by Dennis L. Fink

Ballistic Materials and Penetration Mechanics
edited by Roy Laible

Hoplites at War: A Comprehensive Analysis of Heavy Infantry Combat in the Greek World, 750-100 bce
by Paul M. Bardunias (Author), Fred Eugene Ray Jr (Author)

Amandry P., "Casques grecs à décor gravé", Bulletin de Correspondance Hellénique, 1949

Espositio, Gabriel. Armies of Ancient Greece Circa 500 to 338 B.C.: History,Organization, and Equipment.

Learn the letter V with Ollo the Elephant from Khan Academy Kids!

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 Google Play, Apple, and Amazon app stores:
➡️ http://khan.co/KhanKids-YT-Google
➡️ http://khan.co/KhanKids-YT-Apple
➡️ http://khan.co/KhanKids-YT-Amazon

You can also access other letters of the alphabet on our Letters and Letter Sounds playlist here: http://khan.co/KhanKids-Letters

Subscribe to our channel for more videos like this.

Read along with Caroline and Sophie from Khan Academy Kids! Get started with the book Glide on Ice by Cynthia Platt. Listen to the heartwarming story of how Kodi helps Ollo learn how to ice skate. Learn words like skate, lake, slide, and pine. Then read the book about seal pups by our friends at Bellwether Media. Did you know that seal pups sleep on ice? Next, enjoy Show & Tell with artwork from our friends.

Join us next time, too! Subscribe and hit the notification button to be reminded about new episodes of Circle Time.

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

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

Subscribe to our channel so you don’t miss a single resource from Khan Academy Kids, and access 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.

This organic chemistry video tutorial provides a basic introduction to NMR spectroscopy. It explains the basic principles of a working nmr spectrometer. It discusses the alpha and beta spin states and how to calculate the operating frequency needed given thee strength of the applied magnetic field. NMR spectroscopy works with nuclei with odd number of protons or neutrons. These nuclei have a property called spin which can absorb radio frequency radiation when the appropriate magnetic field is applied to it.

Alcohol Reactions - HBr, PBr3, & SOCl2:
https://www.youtube.com/watch?v=4PDs3ygNsv4

Free Radical Reactions:
https://www.youtube.com/watch?v=w9RAULFkqKQ

Reactions Summary:
https://www.youtube.com/watch?v=nkh0egRNQz0

Organic Chemistry 1 Final Exam Review:
https://www.youtube.com/watch?v=ej2pSWw6U3w

IR Spectroscopy:
https://www.youtube.com/watch?v=WTmj_9VT5oE

Mass Spectrometry:
https://www.youtube.com/watch?v=VUIPYnWLSDE

______________________________
Proton NMR Spectroscopy:
https://www.youtube.com/watch?v=vejKDb1dBn8

Carbon-13 NMR Spectroscopy:
https://www.youtube.com/watch?v=QUVTATcXE9Y

Ethers and Epoxides:
https://www.youtube.com/watch?v=BxRLJhHjqMc

Diels Alder Reaction:
https://www.youtube.com/watch?v=sBmoP6KwK-8

Organic Chemistry 2 Final Exam Review:
https://www.youtube.com/watch?v=T5NaUdVfAOc

For more episodes and free, supporting teachers' notes: https://www.bbc.co.uk/teach/cl....ass-clips-video/hist

Maureen the rat takes us back through time to one of her ancestors, a rat living in London in 1666 at the time of The Great Fire of London.

In this episode we learn how the fire spread across the city and how the Lord Mayor, Samuel Pepys and King Charles II were involved alongside ordinary citizens.

This short film is from the series History KS1: The Great Fire of London.

It is designed to be a classroom resource suitable for teaching History at KS1 in England, Wales and Northern Ireland, and 1st Level in Scotland.

For more content like this, visit the BBC Teach website. Whether you're at home or at school, you can use BBC Teach for free. Our website is home to thousands of free curriculum-mapped videos, arranged by age-group and subject: https://www.bbc.co.uk/teach

Subscribe to the BBC Teach YouTube channel: https://www.youtube.com/bbctea....ch?sub_confirmation=

Get in touch via Facebook: https://www.facebook.com/BBCTeach/

Find more resources on BBC Bitesize: https://www.bbc.co.uk/bitesize

What is the difference between bacteria and viruses? In Bacteria and Viruses for Kids, you will learn all about these two microorganisms. The first thing you will learn is that not all bacteria are bad. In fact, the majority of bacteria on the planet and in your body are actually good. You can find bacteria in things like yogurt, soy sauce, and pickles!

So what are bacteria? They are single-celled organisms so small that you can't see them without a microscope. They don't have a nucleus like other single-celled Common shapes include rods, spirals, and spheres. All these organisms move in different ways too. Some move like swimmers using tail-like structures called flagella. Others stay still and don't move much at all. Then there are some that slither or slide their way around.

Most bacteria are not harmful. However, there are some that can make you sick. These are called pathogens. Common pathogens include food poisoning, leprosy, and typhoid fever. To fight these pathogens, you can use antibiotics or antiseptics. You can actually find antiseptics in soaps because it's how you keep your hands clean. Good bacteria, on the other hand, are good for many reasons. They help you digest food and keep your immune system strong. They also break down dead plant and animal material to help keep soil healthy. And, they produce about half of the oxygen in the atmosphere!

What about viruses? All viruses are bad. Scientists debate whether these organisms are living or dead because they don't have an organized cell structure and can't reproduce unless they attach themselves to a living cell. The word virus comes from the Latin word for "slimy liquid." These organisms attack healthy cells. As those cells reproduce, the virus reproduces too and spreads. Many kinds can pass from person to person through hand-shaking, food contact, and through water.

We hope you and your student(s) enjoyed learning about bacteria and viruses! If you want to learn even more, head over to our website and download one of our many free lesson plans about germs, full of activities, worksheets, and more!

https://learnbright.org/lesson....s/science/bacteria-a
https://learnbright.org/lessons/science/germs/
https://learnbright.org/lesson....s/science/influenza-

What you will learn in Bacteria and Viruses for Kids:
0:00 Introduction to bacteria
1:01 What are bacteria and what do they look like?
1:56 All about bad bacteria—pathogens
2:38 All about good bacteria
3:27 Introduction to viruses
4:22 How viruses work
5:29 How to prevent viral infections
6:41 Review of the material

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