Enjoy our slideshow of 33 Funny Teacher Memes! You can download each math teacher meme at: http://bit.ly/2fuMNyJ if you're looking for some more math teacher humor :)

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Arabic Math, Kids Subtraction, #3, Learning, teaching, Factoring manipulative Blocks, with Smiley Face Books using Japanese Numerals, Mortensen Math Japan, Algebra, Factoring Expressions, with Jerry Mortensen, Mortensen Math manipulative blocks, Kids Montessori K-12 Homeschooling Pre-school Charter Schools Kindergarten mathematics tutorial video.\
Math, Calculus, Trigonometry, Fractions, Algebra, Addition, Subtraction, Multiplication, Factoring
Algebra visualization with Mortensen Math.com manipulative colored blocks to visualizing algebraic expressions, visualizing mathematics, Montessori Homeschool k-12 preschool online curriculum on line video.
CONTACT US:
Toll Free USA Tel: 800+4plus4=8! [800-475-8748]
http://www.mortensenmathdirect.co

This electronics video tutorial explains how to calculate the voltage drop across a resistor using ohm's law. It contains a few examples and practice problems.

Basic Electronics For Beginners: https://www.youtube.com/watch?v=uXr4lXYjXuU

Electrical Formulas:
https://www.youtube.com/watch?v=Pv_-OU4Dluo

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

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

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

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

______________________________
The Voltage Drop:
https://www.youtube.com/watch?v=YYSKRU1kDt4

Kirchhoff's Voltage Law:
https://www.youtube.com/watch?v=6F_rmZ1nXFQ

Kirchhoff's Current Law:
https://www.youtube.com/watch?v=Q39xQUlTGew

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

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

Voltage Dividers:
https://www.youtube.com/watch?v=JGXdi7XcQi8

_______________________________
Current Dividers:
https://www.youtube.com/watch?v=PpfOH_uBKCw

Current Divider With 3 Parallel Resistors:
https://www.youtube.com/watch?v=y-gwr8LCHKo

Series and Parallel Circuits - Mega Review:
https://www.youtube.com/watch?v=wejz5s31Cts

Equivalent Resistance of Complex Circuits:
https://www.youtube.com/watch?v=kjW4H3fKi8o

Solving Equivalent Resistance Circuits:
https://www.youtube.com/watch?v=dEuBykX5_B4

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

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

This chemistry video tutorial provides a basic introduction into polar and nonpolar molecules.

How To Draw Lewis Structures: https://www.youtube.com/watch?v=NFZtjSeT3XE

VSEPR Theory:
https://www.youtube.com/watch?v=DBrq31w8vC4

Molecular Geometry:
https://www.youtube.com/watch?v=_Cw0_cJzkSI

Lewis Dot Structures:
https://www.youtube.com/watch?v=Ymf3kZePDnU

Lewis Structures of Ionic Compounds:
https://www.youtube.com/watch?v=xhItoqhHoEE

_________________________________
Octet Rule Exceptions:
https://www.youtube.com/watch?v=96L6_IwyHRM

Resonance Structures:
https://www.youtube.com/watch?v=9B5FGPDwX_E

Polar and Nonpolar Molecules:
https://www.youtube.com/watch?v=4ykSzYl_4vI

Formal Charge Calculations:
https://www.youtube.com/watch?v=R_SIjijCouE

Lewis Structures - Mega Review:
https://www.youtube.com/watch?v=PeY_sihSh8E

________________________________
Hybridization of Atomic Orbitals:
https://www.youtube.com/watch?v=pdJeQUd2g_4

Molecular Orbital Theory:
https://www.youtube.com/watch?v=6tB6E6R_XpQ

Dipole Dipole Forces of Attraction:
https://www.youtube.com/watch?v=zOvnu0KYyxo

Hydrogen Bonding:
https://www.youtube.com/watch?v=ZDjJOqOKeCI

Unit Cell Chemistry:
https://www.youtube.com/watch?v=HCWwRh5CXYU

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

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

Kæmper du nogle gange med motivation, koncentration, planlægning, prioriteringer eller målsætninger? Vi har lavet 5 nye videoer omkring studieteknik som kan hjælpe dig med at vinde kampen.

APS Underwater Assault Rifle
Avtomat Podvodny Spetsialnyy

The APS rifle was developed by Vladimir Simonov along with the SPP-1 Pistol during the 1970’s in the Soviet Union so that it's frogmen could have the ability to to shoot underwater.


Please consider supporting our videos on Patreon

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Get your copy of Simple History: The Cold War

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Credit:

Narrator:

Chris Kane

http://ckvox.com/

Thank you to Mike Edge for weapons research and script

Animation:
Daniel Turner

Artwork:
Daniel turner

Music Credit
Destructoid MK2

Underwater SFX 'Dive Deep preview' by hisoul

http://www.scienceoffice.org/en/

The (truly) Periodic Table is an animated film that tells you everything you ever wanted to know about the Periodic Table: why it has this shape, how the elements are organized, how they combine or ... not really!

Produced by the Science Office for the University of Aveiro, in the framework of the International Year of Chemistry 2011.

Coordination: Paulo Ribeiro Claro (UA) and Mariana Barrosa (Science Office)
Original text and scientific consultancy: Paulo Ribeiro Claro (UA)
Motion Graphics and post-production: Rui Bráz (Science Office)
Illustrations and design: António Cruz (Science Office)
Narration: James Clamp
Music: Paulo Raimundo (Science Office)

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 3,000+ documentaries! Check out our personal recommendation and MagellanTV’s exclusive playlists: https://www.magellantv.com/explore/history

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

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

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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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Credit:
Created by Daniel Turner
Script: Conan White
Narrator:

Chris Kane
https://vocalforge.com/

Saddle the horse puzzle - https://www.creativecrafthouse.....com/saddle-the-hors

As a thank you for all those who are coming from my videos Puzzlemaster offers Worldwide Free Shipping on orders of $99 and over using the coupon code available here:
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Courses on Khan Academy are always 100% free. Start practicing—and saving your progress—now: https://www.khanacademy.org/sc....ience/in-in-class-11

Overview of the Electron Transport Chain
More free lessons at: http://www.khanacademy.org/video?v=mfgCcFXUZRk

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.

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/algebra2/systems_eq_ineq/systems_tutorial_precalc/e/systems_of_equations_with_substitution?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraII

Watch the next lesson: https://www.khanacademy.org/math/algebra2/systems_eq_ineq/systems_tutorial_precalc/v/inconsistent-systems-of-equations?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraII

Missed the previous lesson?
https://www.khanacademy.org/math/algebra2/systems_eq_ineq/systems_tutorial_precalc/v/solving-systems-with-substitution?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

Description of the major plate boundaries.
In the video, I include description of convergent boundaries. There are three types of convergent boundaries, continental to continental, oceanic to continental, and oceanic to oceanic.
Divergent boundaries are when lithospheric plates move away from each other.
Transform boundaries slide past one another.

How Tectonic Plates Move
http://www.moomoomathblog.com/....2021/03/how-tectonic
Plate Boundaries
http://www.moomoomathblog.com/....2020/02/6-plate-boun

This calculus video tutorial explains how to evaluate the limit of rational functions and fractions with square roots and radicals. It provides a basic review of what you need to do to find the limit. Whenever you a complex fraction, you should multiply it by the common denominator. If you have radicals and square roots, you should multiply by the conjugate. This video contains plenty of examples and practice problems for you to work on.

Introduction to Limits:
https://www.youtube.com/watch?v=YNstP0ESndU

How To Evaluate Limits From a Graph:
https://www.youtube.com/watch?v=7Q2HwTHcxA0

Evaluating Limits By Factoring:
https://www.youtube.com/watch?v=fOrOeZA-vdY

Limits of Rational Functions :
https://www.youtube.com/watch?v=M2BgBG2Su94

Limits of Radical Functions:
https://www.youtube.com/watch?v=qay5HvT1UK8

Limits of Trigonometric Functions:
https://www.youtube.com/watch?v=HbtuSC_WOW0

___________________________________
How To Find The Limit at Infinity:
https://www.youtube.com/watch?v=NmLljBAg82o

Infinite Limits + Vertical Asymptotes:
https://www.youtube.com/watch?v=xvFqomOpLrs

Limits at Infinity With Radicals:
https://www.youtube.com/watch?v=1hyoTeWg6Bs

Limits of Absolute Value Functions:
https://www.youtube.com/watch?v=wFeh4ByT0xs

Limits of Composite Functions:
https://www.youtube.com/watch?v=KjL9cWHzeIc

The Squeeze Theorem:
https://www.youtube.com/watch?v=lVIb9iJ-rRI

____________________________________
Limits and Logarithms:
https://www.youtube.com/watch?v=fHzmQmcvheI

Limits of Exponential Functions:
https://www.youtube.com/watch?v=pcUXo7XbRaM

Piecewise Functions - Limits:
https://www.youtube.com/watch?v=JrYmEo6hoiU

3 Step Continuity Test:
https://www.youtube.com/watch?v=WT7oxiiFYt8

Continuity and Differentiability:
https://www.youtube.com/watch?v=fml0-ELYLaE

Limits - Test Review:
https://www.youtube.com/watch?v=6e4Wtgc43KQ

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

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

In this video I would like to talk about physical and chemical changes. Physical changes are changes in appearance only.
A new substance is not created and new chemical bonds are .not formed or broken.
For example, take this stack of paper, and wading it into smaller pieces is a physical change.It still has the same properties as the original paper.
Cutting someone's hair is a physical change.
The hair has the same properties as the original hair.
Phase changes are physical changes.
When ice goes to solid,liquid ,then a gas and back it is a physical change.
Most mixtures are a physical change.
Mixing salt and water is a physical change because you can separate it later.
Chemical changes on the other hand create a new substance.
It involves breaking or making new chemical bonds.
between atoms.
Chemical changes leave behind clues or indicators of a chemical change.
Here are 5 indicators of a chemical change.
First if you see burning or fire it is a chemical change.
A temperature change without heating or cooling is a chemical change.
An explosion is a chemical change. They are also pretty cool.
A change in color is a chemical change.
A change in odor is a chemical change and anytime you have bubbles of fizzing you have a chemical change.
Thanks for watching physical and chemical changes,, MooMooMath and Science uploads a new Math and Science video everyday.

Updated video Physical and Chemical Changes
https://youtu.be/W5tifZPNo_Y

More on Physical and Chemical Changes
http://www.moomoomathblog.com/....2017/03/physical-and

Physical and Chemical Properties
http://www.moomoomathblog.com/....2023/01/physical-and

What is a chemical Reaction?
https://moomoomath.com/what-is....-a-chemical-reaction

-~-~~-~~~-~~-~-
Please watch: "Study Skills Teacher's Secret Guide to your Best Grades"
https://www.youtube.com/watch?v=f3bsg8gaSbw
-~-~~-~~~-~~-~-
*
*
For more Life Science videos and summaries see,
http://www.moomoomath.com/Midd....le-School-Science-an

It is now time to meet the system that helps your brain stay in touch with the outside world. We follow up last week's tour of the central nervous system with a look at your peripheral nervous system, its afferent and efferent divisions, how it processes information, the reflex arc, and what your brain has to say about pain.

Pssst... we made flashcards to help you review the content in this episode! Find them on the free Crash Course App!
Download it here for Apple Devices: https://apple.co/3d4eyZo
Download it here for Android Devices: https://bit.ly/2SrDulJ

Chapters:
Introduction: Peripheral Nervous System 00:00
Sensory Nerve Receptors: Thermoreceptors, Photoreceptors, Chemoreceptors, Mechanoreceptors, and Nociceptors 0:56
What is Pain? 1:54
How Pain is Processed 2:51
Pain Threshold vs Pain Tolerance 3:50
How the Brain Processes Pain 4:25
Afferent and Efferent Divisions 5:42
Five Steps of the Reflex Arc 6:38
What the Brain Says About Pain 8:09
Review 9:09
Credits 9:39

***

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

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***SUPPORTER THANK YOU!***

Thank you so much to all of our awesome supporters for their contributions to help make Crash Course possible and freely available for everyone forever:

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In order to understand how we study the universe, we need to talk a little bit about light. Light is a form of energy. Its wavelength tells us its energy and color. Spectroscopy allows us to analyze those colors and determine an object’s temperature, density, spin, motion, and chemical composition.

Check out the Crash Course Astronomy solar system poster here: http://store.dftba.com/product....s/crashcourse-astron

--

Chapters:
Introduction 00:00
Light is a Wave 0:31
Electromagnetic Spectrum 1:32
How is Light Made? 3:19
Atomic Structure 4:47
Spectroscopy 7:14
Redshift vs Blueshift 8:26
Review 9:50

--

PBS Digital Studios: http://youtube.com/pbsdigitalstudios

Follow Phil on Twitter: https://twitter.com/badastronomer

Want to find Crash Course elsewhere on the internet?
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Support CrashCourse on Patreon: http://www.patreon.com/crashcourse

--

PHOTOS/VIDEOS
Wavelengths http://imagine.gsfc.nasa.gov/e....ducators/gammaraybur [credit: Imagine the Universe! / NASA]
Observatories across spectrum http://imagine.gsfc.nasa.gov/I....mages/science/observ [credit: Imagine the Universe! / NASA]
Red hot spiral hotplate http://freefoodphotos.com/imag....elibrary/cooking/sli [credit: freefoodphotos.com]
The Crab Nebula http://en.wikipedia.org/wiki/N....ebula#/media/File:Cr [credit: NASA, ESA, J. Hester and A. Loll (Arizona State University)]
Building the Space Telescope Imaging Spectograph http://imgsrc.hubblesite.org/h....u/gallery/db/spacecr [credit: NASA]
VST images the Lagoon Nebula http://en.wikipedia.org/wiki/L....agoon_Nebula#/media/ [credit: ESO/VPHAS+ team]
Jupiter http://www.nasa.gov/images/con....tent/414987main_pia0 [credit: NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute]
Venus http://en.wikipedia.org/wiki/A....tmosphere_of_Venus#/ [credit: NASA - NSSDC Photo Gallery Venus]
Ring Around SN 1987a, image 1 http://www.spacetelescope.org/images/opo9714e/ [credit: Jason Pun (NOAO) and SINS Collaboration]
Ring Around SN 1987a, image 2 http://www.spacetelescope.org/images/opo9714a/ [credit: George Sonneborn (GSFC) and NASA/ESA]