Educational video for children that talks about the divisibility rules of the number 9. The divisibility rules allow us to know quickly if when dividing one number by the other, the remainder is zero. A divisor is a number that divides into another number. Each number has its own divisibility rules. Some are based on adding all the digits of the number, others on looking at its last digits, and some on doing some simple operations. The divisibility rule for 9 is similar to that of the number 3. We have to add the number's digits and divide the result by 9. If the remainder is zero, it's divisible by 9.

This video is a very useful and interesting resource for children. It is perfect for teaching the divisibility rule of the number 9. It is an excellent video for primary education.

Thanks for visiting us! If you want your children to smile and learn, subscribe! :D

If you like our videos, download Smile and Learn now. You’ll discover thousands of activities for children aged 3 to 12 years, all designed by educators. We have hundreds of games, interactive stories and videos in five languages: English, Spanish, Portuguese, Italian, Turkish and French. Try a month for free and start the adventure!

www.smileandlearn.com

This Algebra video tutorial provides a basic introduction into linear equations. It discusses the three forms of a linear equation - the point slope form, the slope intercept form, and the standard form of the equation. This video explains how to calculate the slope of a line that passes through two points and how to graph a linear equation in all 3 forms. This video also discusses parallel and perpendicular lines. It contains plenty of examples and practice problems.


Full 1 Hour 30 Minute Video on YouTube: https://www.youtube.com/watch?v=mdIPPV5WFhs
Get The Full 1 Hour 30 Minute Video: https://www.patreon.com/MathScienceTutor
Direct Link to The Full Video: https://bit.ly/3DxaIWU
_______________________________________________________________________________________________
Algebra For Beginners: https://www.youtube.com/watch?v=MHeirBPOI6w
Chemistry For Beginners: https://www.youtube.com/watch?v=-KfG8kH-r3Y
Physics For Beginners: https://www.youtube.com/watch?v=b1t41Q3xRM8
_______________________________________________________________________________________________
Basic Math Review: https://www.youtube.com/watch?v=T_6Mq6PWoGc
Long Division: https://www.youtube.com/watch?v=GiiuZ8sfw00
Order of Operations: https://www.youtube.com/watch?v=saTBf8AO4Ok
How To Evaluate Algebraic Expressions: https://www.youtube.com/watch?v=-VCUcRtQjx8
Percentages Made Easy: https://www.youtube.com/watch?v=WYWPuG-8U5Q
Fractions - Basic Introduction: https://www.youtube.com/watch?v=GvLIEiqxS6s
______________________________________________________________________________________________
How To Solve Linear Equations: https://www.youtube.com/watch?v=7DPWeBszNSM
Solving Linear Equations - More Problems: https://www.youtube.com/watch?v=Z-ZkmpQBIFo
Translating Words to Algebraic Expressions: https://www.youtube.com/watch?v=QEnFIgN8UBw
Graphing Ordered Pairs: https://www.youtube.com/watch?v=yaOf7ioCgFQ
How To Find The Slope of a Line: https://www.youtube.com/watch?v=jlkE4VCnhdE
Finding The Slope Given 2 Points: https://www.youtube.com/watch?v=Id_UqMLAXzY
Undefined Slope: https://www.youtube.com/watch?v=4eYlTOy-IXw
Slope-Intercept Form: https://www.youtube.com/watch?v=qXX47hS2KLw
How To Find the X and Y Intercepts: https://www.youtube.com/watch?v=zL1E5w2sMxc
Point-Slope Form: https://www.youtube.com/watch?v=yoHs1h5qtuQ
_____________________________________________________________________________________________
Graphing Equations In Point Slope Form: https://www.youtube.com/watch?v=XzG-fi__hsU
Writing Equations Given a Point & Slope: https://www.youtube.com/watch?v=Ms5ojdI6UuM
Writing Linear Equations Given 2 Points: https://www.youtube.com/watch?v=lzqTD0JWwhY
Writing Linear Equations From Graphs: https://www.youtube.com/watch?v=JaX_dIDUYBg
Finding The Point of Intersection: https://www.youtube.com/watch?v=R0bGxNzgL2o
Writing Equations Given X & Y Intercepts: https://www.youtube.com/watch?v=ri1bagtR08A
Parallel and Perpendicular Lines: https://www.youtube.com/watch?v=Uq8pSFaXPmQ
Writing Equations of Perpendicular Lines: https://www.youtube.com/watch?v=Nj6OKT-zKWg
Linear Equations - Test Review: https://www.youtube.com/watch?v=Ft2_QtXAnh8
______________________________________________________________________________________________
Factoring Trinomials & Polynomials: https://www.youtube.com/watch?v=9MUDAr1PnlE
Systems of Equations: https://www.youtube.com/watch?v=oKqtgz2eo-Y
Solving Quadratic Equations By Factoring: https://www.youtube.com/watch?v=qeByhTF8WEw
Simplifying Rational Expressions: https://www.youtube.com/watch?v=uVpsz-xpnPo
Simplifying Radical Expressions: https://www.youtube.com/watch?v=Llrngdh3Rrg
Imaginary Numbers: https://www.youtube.com/watch?v=vRJqPo_zcnQ
Logarithms: https://www.youtube.com/watch?v=kqVpPSzkTYA
Solving Exponential Equations: https://www.youtube.com/watch?v=9tutJ5xrRwg
Conic Sections: https://www.youtube.com/watch?v=YWHyovdHqkg

Learn more about opportunities from KiwiCo here: https://www.kiwico.com/okay
SUBSCRIBE so you don’t miss a video! ►► http://bit.ly/iotbs_sub
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Nothing is guaranteed in life except death, taxes, and entropy. What do other life forms have to teach us about staying alive as we get old, and will we ever conquer death?

REFERENCES:

Arias, E. et al. (2013). United States life tables eliminating certain causes of death, 1999–2001. National Vital Statistics Reports 61(9)

De Cecco, M. et al. (2013). Transposable elements become active and mobile in the genomes of aging mammalian somatic tissues. Aging 5(12): 867–883. DOI: 10.18632/aging.100621

Hayflick, L. (2016). Unlike aging, longevity is sexually determined. In Handbook of theories of aging, 3rd ed. (pp. 31-52). New York, NY, Springer.

Hayflick, L. (UCSF School of Medicine). Interview.

Klapper, W. et al. (1998). Longevity of lobsters is linked to ubiquitous telomerase expression. FEBS Letters 439: 143-146

Martinez, D.E. (1998). Mortality patterns suggest lack of senescence in hydra. Experimental Gerontology 33(3): 217–225

Reilly, M.T. et al. (2013). The role of transposable elements in health and diseases of
the central nervous system. The Journal of Neuroscience 33(45): 17577–17586

Roth, A.W. and Polotsky, A.J. (2012). Can we live longer by eating less? A review of caloric restriction and longevity. Maturitas 71: 315–319

Sturm, A. et al. (2015). The mechanism of ageing: primary role of transposable elements in genome disintegration. Cell. Mol. Life Sci. 72:1839–1847

-----------
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Educational video for children to learn the flags of African countries. They'll have to find the different picture. This challenge helps children to work on their visual attention skills and mental agility. They will be given 15 seconds to find the different flag. If they can't make it in 15 seconds they can stop the video. Test your attention skills! Would you like to learn the flags of Africa? This video is part of an atention skills video collection. It's a great resource for elementary school.

Thanks for visiting us! If you want your children to smile and learn, subscribe! :D

We only upload our own content, designed by educators so that children smile and learn while watching a video.

All of our content reinforces educational values, encouraging the use of multiple intelligences and language learning.

If you like our videos, download Smile and Learn now. You’ll discover more than 5.000 activities for children aged 3 to 12 yeards, all designed by educators. We have 250 games and interactive stories and over 280 videos in five languages: English, Spanish, Portuguese, Italian and French. Try a month for free and start the adventure!

This video provides a basic introduction into acids and bases with reference to organic chemistry. It explains how to write acid base reactions as well as how to determine the conjugate acid and the conjugate base. It covers the brownsted lowry definition of acids and bases as well as the lewis version. This video also explains how to determine if an acid base reaction is product favored or reactant favored.

Access The Full 1 Hour 20 Minute Video:
https://www.patreon.com/MathScienceTutor

Direct Link to The Full Video:
https://bit.ly/3k9vuX6

Organic Chemistry PDF Worksheets:
https://www.video-tutor.net/orgo-chem.html

_______________________________________
Join The YouTube Membership Program:
https://bit.ly/46xaQTR

Full 1 Hour 20 Minute Video on YouTube:
https://www.youtube.com/watch?v=El9OkaCYBVc

This week Craig looks at the expressed powers of the President of the United States - that is the ones you can find in the Constitution. From appointing judges and granting pardons, to vetoing laws and acting as the nation’s chief diplomat on foreign policy, the Commander in Chief is a pretty powerful person, but actually not as powerful as you might think. The Constitution also limits presidential powers to maintain balance among the three branches of government. Next week we'll talk about the President's powers NOT mentioned in the Constitution - implied powers.

Support is provided by Voqal: http://www.voqal.org
This episode is sponsored by Squarespace: http://www.squarespace.com/crashcourse

Chapters:
Introduction: Presidential Power 00:00
Qualifications to become President 1:41
Presidential powers 2:33
Commander-in-Chief 3:26
Diplomatic powers of the President 4:11
State of the Union 4:38
Other formal powers of the President 5:03
Credits 5:56

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

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This physics video tutorial provides a basic introduction into kinetic friction and static friction. It contains plenty of examples and physics problems that asks you to calculate the acceleration using newton's laws of motion. The static frictional force is equal to the applied force up to a maximum value. The kinetic friction force is a constant value that depends on the interaction between the horizontal surface and the object. All frictional forces is dependent on the normal of the object. You should draw a free body diagram for each practice problem if you wish to make it a lot easier.

Full 1 Hour 16 Minute Video:
https://www.patreon.com/MathScienceTutor

Direct Link to The Full Video:
https://bit.ly/3idAQ30

PDF Worksheet - 12 Problems:
https://bit.ly/3ZdGKSA

Physics PDF Worksheets:
https://www.video-tutor.net/ph....ysics-basic-introduc

______________________________
YouTube Membership:
https://bit.ly/46xaQTR

Full 1 Hour 16 Minute Video:
https://www.youtube.com/watch?v=4OBjywzppQQ

Now that we’ve started talking about identity, today Hank tackles the question of personhood. Philosophers have tried to assess what constitutes personhood with a variety of different criteria, including genetic, cognitive, social, sentience, and the gradient theory. As with many of philosophy’s great questions, this has much broader implications than simple conjecture. The way we answer this question informs all sorts of things about the way we move about the world, including our views on some of our greatest social debates.

--

All other images via Wikimedia Commons, licensed under Creative Commons BY 4.0: https://creativecommons.org/licenses/by/4.0/

--

Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios

Crash Course Philosophy is sponsored by Squarespace.
http://www.squarespace.com/crashcourse

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Want to find Crash Course elsewhere on the internet?
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This Calculus 3 video tutorial explains how to find the distance between a point and a plane using the dot product formula and scalar projections of vectors.

Area - Vector Cross Product: https://www.youtube.com/watch?v=YbZmAqGUkqc

Triple Scalar Product:
https://www.youtube.com/watch?v=6NeAK0rJwlk

Vector Equations of Lines:
https://www.youtube.com/watch?v=MkjazYnvNP8

The Equation of a Plane:
https://www.youtube.com/watch?v=2sZKZHyaQJ8

Planar Equation - 3 Points:
https://www.youtube.com/watch?v=rL9UXzZYYo4

_______________________________
Lines & Planes - Intersection:
https://www.youtube.com/watch?v=_W3aVWsMp14

Angle Between Two Planes:
https://www.youtube.com/watch?v=7G07dPSlWbY

Distance Between Point and Plane:
https://www.youtube.com/watch?v=zWMTTRJ0l4w

Chain Rule - Partial Derivatives:
https://www.youtube.com/watch?v=XipB_uEexF0

Implicit Partial Differentiation:
https://www.youtube.com/watch?v=OBELQIPH5xY

________________________________
Directional Derivatives:
https://www.youtube.com/watch?v=CnVes9TdnPo

Limits of Multivariable Functions:
https://www.youtube.com/watch?v=E1lMMBpz8YM

Double Integrals:
https://www.youtube.com/watch?v=BJ_0FURo9RE

Local Extrema & Critical Points:
https://www.youtube.com/watch?v=UID893EosM8

Absolute Extrema - Max & Min:
https://www.youtube.com/watch?v=Hg38kfK5w4E

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

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

Our next stop in our tour of the ethical lay of the land is utilitarianism. With a little help from Batman, Hank explains the principle of utility, and the difference between act and rule utilitarianism.

--

Produced in collaboration with PBS Digital Studios: http://youtube.com/pbsdigitalstudios


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Want to find Crash Course elsewhere on the internet?
Facebook - http://www.facebook.com/YouTubeCrashC...
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CC Kids: http://www.youtube.com/crashcoursekids

This video explains what is electric potential difference. It also explains how to determine the direction of electric current flow in a resistor using the electric potential values across a resistor. It also explains how to determine the amount of current flowing in a resistor using voltage and ohm's law.

Electric Current In Circuits:
https://www.youtube.com/watch?v=r-SCyD7f_zI

The Electric Battery:
https://www.youtube.com/watch?v=xrf6I_5vX64

Ohm's Law Problems:
https://www.youtube.com/watch?v=NxxNu9Cek1E

Resistance and Resistivity:
https://www.youtube.com/watch?v=PIJTu8z0-_U

Resistor Color Code:
https://www.youtube.com/watch?v=G1mZutobxDU

______________________________
Internal Resistance of a Battery:
https://www.youtube.com/watch?v=R1QN_0fcZ_8

Electromotive Force of a Battery:
https://www.youtube.com/watch?v=k077CwKGiwk

Drift Velocity and Current Density:
https://www.youtube.com/watch?v=KiTkSZy79cw

Potential Difference Between Two Points:
https://www.youtube.com/watch?v=vcbkvYDP5a8

Alternating Current Vs Direct Current:
https://www.youtube.com/watch?v=ERIToctYUcQ

______________________________
Schematic Diagrams & Symbols:
https://www.youtube.com/watch?v=Dl1gFBNa0Ik

Open, Closed, and Short Circuits:
https://www.youtube.com/watch?v=v5RJf_V0LYA

Resistors In Series:
https://www.youtube.com/watch?v=9z53qVQjasU

Resistors In Parallel:
https://www.youtube.com/watch?v=SYrOiQs3X2U

Physics PDF Worksheets:
https://www.video-tutor.net/ph....ysics-basic-introduc

How do companies make money? What are profits? Revenues? How are prices set? This week, Jacob and Adriene are talking business. Whether you're selling cars, pizza, or glow sticks, this video has pretty much all the information you need to run a business. Well, not really, but there's a lot of good stuff in here.

***

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:

Mark, Eric Kitchen, Jessica Wode, Jeffrey Thompson, Steve Marshall, Moritz Schmidt, Robert Kunz, Tim Curwick, Jason A Saslow, SR Foxley, Elliot Beter, Jacob Ash, Christian, Jan Schmid, Jirat, Christy Huddleston, Daniel Baulig, Chris Peters, Anna-Ester Volozh, Ian Dundore, Caleb Weeks

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Kære venner
Jeg har sådan glædet mig til at dele denne fantastiske nyhed med jer.

I samarbejde med Gonge Danmark udgiver vi inden længe 25 af mine værksteder incl. alle tilhørende konkrete materialer, så de kan stå i værkstedskassen klar til brug.
Jeg vil i nærmeste fremtid gennemgå hver af de 5 værkstedskasser (5 værksteder i hver), så følg med her på kanalen og også gerne på Instagram, hvor jeg vil vise eksempler på værkstederne i brug i mine klasser.

Glæder mig vildt til at høre, hvad I synes om dem :)

Kh Anette

Følg mig gerne her:
https://facebook.com/anettekmatematik/
https://instagram.com/anettekmatematik/
https://www.youtube.com/channe....l/UCR8PqEuBE7OlORn2y
https://anettekmatematik.com/

#værkstedsundervisning
#konkretematerialer

Today, we're going to take a closer look at how the oceans circulate by following the life of a discarded water bottle as it gets snagged in the North Pacific Garbage Patch. We'll talk about what causes the movement of water, called current, both near the surface and much deeper in the oceans, and we'll show how they follow similar (but not identical) paths to the winds. Ocean circulation plays a huge role in cycling vital nutrients within the seas and helps us transport goods on ships across the globe and it's up to us to protect it.

Watch our videos and review your learning with the Crash Course App!
Download here for Apple Devices: https://apple.co/3d4eyZo
Download here for Android Devices: https://bit.ly/2SrDulJ

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:

Aziz, Christine Phelan, Nick, DAVID MORTON HUDSON, Perry Joyce, Scott Harrison, Mark & Susan Billian, Junrong Eric Zhu, Alan Bridgeman, Jennifer Smith, Matt Curls, Tim Kwist, Jonathan Zbikowski, Jennifer Killen, Sarah & Nathan Catchings, Brandon Westmoreland, team dorsey, Trevin Beattie, Eric Koslow, Indika Siriwardena, Khaled El Shalakany, Shawn Arnold, Siobhán, Ken Penttinen, Nathan Taylor, William McGraw, Laura Damon, Andrei Krishkevich, Eric Prestemon, Jirat, Brian Thomas Gossett, Ian Dundore, Jason A Saslow, Justin, Jessica Wode, Mark, Caleb Weeks
__

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

#CrashCourse #Geography #Oceans

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Kan du og dine elever løse en Rubiks Cube?

Det kan I hurtigt få lært, og der er super meget god matematik og hygge forbundet med løsningen af sådan en terning.
Eleverne får øvet sig i mange vigtige elementer. Først og fremmest i at koncentrere sig og prøve igen, når det ikke lige lykkedes med det samme.
Men også i at forstå og anvende de algoritmer der gør løsningen mulig.
Og de bliver så stolte, når det lykkes at løse første step eller den første hele side... og med tiden måske hele Cuben.

I denne video kan du se min vejledning til løsning af Cuben, og du kan gratis hente de 8 steps på min hjemmeside lige her:
https://anettekmatematik.com/loes-en-rubiks-cube/

Brug kortene som separate værksteder sammen med videoen her. Hav gerne en ipad klar, så eleverne hurtigt kan finde det rigtige sted i videovejledningen og løse det pågældende step sammen med mig.
Rigtig god fornøjelse.

Del gerne denne video og link til min hjemmeside med kolleger, elever og forældre. Måske der er flere der vil lege med.
KH Anette

Følg mig gerne her:
https://facebook.com/anettekmatematik/
https://instagram.com/anettekmatematik/
https://www.youtube.com/channe....l/UCR8PqEuBE7OlORn2y
https://anettekmatematik.com/


#værkstedsundervisning
#rubiks
#rubikscube

Pete the Kitty and the Groovy Playdate (Pete the Cat)
by James Dean
Read by Let's Read Stories

This groovy series from New York Times bestselling team James and Kimberly Dean introduces Pete the Cat before he was Pete the Cat...when he was little Pete the Kitty!

Pete the Kitty is super excited to visit his friend Grumpy Toad’s house for a playdate! Grumpy Toad has all the best toys: a truck, building blocks, and a superhero cape. Far out! It’s going to be cat-tastic!

But when Grumpy Toad refuses to share any of his cool toys with Pete, neither of them are having any fun. Will Grumpy Toad ever share his toys with his friend Pete?

In this easy-to-read and engaging picture book, little readers will learn all about sharing with their favorite blue kitten!

Click here to purchase Pete the Kitty and the Groovy Playdate (Pete the Cat): https://www.amazon.com/Pete-Ki....tty-Groovy-Playdate-

The war in Europe began in September 1939 when Nazi Germany, under Adolf Hitler, invaded Poland.

Using Blitzkrieg tactics the country was quickly overtaken.

Support the cartoons on patreon:

https://www.patreon.com/simplehistory?ty=c


Get your copy of Simple History: World War II today!

AMAZON USA

https://www.amazon.com/Simple-....History-simple-guide


AMAZON UK

https://www.amazon.co.uk/Simpl....e-History-World-War-


Simple history gives you the facts, simple!

See the book collection here:

Amazon USA

http://www.amazon.com/Daniel-Turner/e/B00H5TYLAE/ref=sr_ntt_srch_lnk_1?qid=1457289367&sr=8-1


Amazon UK
http://www.amazon.co.uk/Daniel-Turner/e/B00H5TYLAE/ref=sr_ntt_srch_lnk_1?qid=1457289367&sr=8-1

http://www.simplehistory.co.uk/

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

https://twitter.com/simple_guides


Credit:

Narrator:
John Colley

Animation:
Daniel Turner
CJ Boucher
April Ibañez

Artwork:
Daniel Turner
Freepik

Music:

War by GoSoundtrack http://www.gosoundtrack.com/
Creative Commons — Attribution 4.0 International — CC BY 4.0
https://creativecommons.org/licenses/...
Music provided by Audio Library https://youtu.be/1T-UBUryLTQ

What Daddies Like
by Judy Carey Nevin
Illustrated by Stephanie Six
Read by Let's Read Stories

Find out what daddies like best in this story about a daddy bear and his cub's special day together.

Daddies like smooches.

Daddies like hugs.

Daddies like "Good morning to you!"

As a daddy bear and his cub spend the day together, readers find out all about daddies' favorite things to do, like having adventures in the park, splashes in the bath, playing peek-a-boo, and night-lights, it's true. But most of all, daddies like hearing and saying "I love you!"

Click here to purchase : https://www.amazon.com/What-Da....ddies-Like-Carey-Nev

Solving percent problems is easy. By using this percentage trick to easily break down the percentage into different parts, you can solve percentage problems in your head in a matter of seconds.
This trick also is explained so you will know what you are doing and have a deeper understanding of what percentages are and how to solve them.

To donate to the tecmath channel: https://paypal.me/tecmath?locale.x=en_AU

To support tecmath on Patreon: https://www.patreon.com/tecmath

To buy tecmath mechandise: https://teespring.com/stores/tecmath-store

This mental multiplication trick uses the idea of a third number - a base number - to help us multiply two numbers in your head. This series of videos first looks at multiplying numbers near 10 using base 10. The second video looks at multiplying using base 20 and 30. The third video looks at how to apply this mental multiplication trick to numbers near 50. The forth video the investigates ho to easilt mentally multiply numbers near to 100. Continue your mental math multiplication abilties here!

To donate to the tecmath channel:https://paypal.me/tecmath

To support tecmath on Patreon: https://www.patreon.com/tecmath

To buy tecmath mechandise: https://teespring.com/stores/tecmath-store