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

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

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

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

About Khan Academy: Khan Academy offers practice exercises, instructional videos, and a personalized learning dashboard that empower learners to study at their own pace in and outside of the classroom. We tackle math, science, computer programming, history, art history, economics, and more. Our math missions guide learners from kindergarten to calculus using state-of-the-art, adaptive technology that identifies strengths and learning gaps. We've also partnered with institutions like NASA, The Museum of Modern Art, The California Academy of Sciences, and MIT to offer specialized content.

For free. For everyone. Forever. #YouCanLearnAnything

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

Jesse Roe and Sal talk about the difference between equations and functions

Watch the next lesson: https://www.khanacademy.org/math/algebra2/functions_and_graphs/function-introduction/v/relations-and-functions?utm_source=YT&utm_medium=Desc&utm_campaign=AlgebraII

Missed the previous lesson?
https://www.khanacademy.org/math/algebra2/functions_and_graphs/function-introduction/v/what-is-a-function?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
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Download World of Tanks PC for FREE and use the code TANKMANIA to receive the Excelsior tank and other rewards by clicking this link: https://tanks.ly/3s3FBPe


T-34: An armoured legend. Learn who created this legendary tank, it's long road filled with different and difficult challenges, from defeats to victory. The iron fist of the Red Army, the T-34 became one of the synonyms for the victory in WWII, paving the way for the modern battle tanks yet having a very humble start even before WWII.

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Credit:
Created by Daniel Turner (B.A. (Hons) in History, University College London)
Script and Animation: Aleksandar Djokic
Narrator:

Chris Kane
https://vocalforge.com/

One of the most famous swords was the Cutlass, used by naval men for centuries but made famous by pirates.
The overall build of the Cutlass made it extremely popular among seafarers in the 17th and 18th centuries.
As a short broadsword, generally around 28 inches in length, the Cutlass was ideal for use on ships, where space was limited.

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Credit:
Created by Daniel Turner

Narrator:

Chris Kane
https://vocalforge.com/

Script: Conan White

Music Credit:
Celtic Impulse - Celtic 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
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Sources:

https://pastebin.com/zHvRBHSz

Sponsored by Cash Quiz, get the app free here:
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In 1915 the Osowiec Fortress on the Eastern Front would see a shocking event, of men reanimating from a gas attack that should have killed them..

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Credit:

Narrator:

Chris Kane
www.vocalforge.com

Animation:
Daniel Turner

Artwork:
Daniel turner

Music Credit

Stormfront Kevin MacLeod (incompetech.com)
Licensed under Creative Commons: By Attribution 3.0 License
http://creativecommons.org/licenses/by/3.0/

Further Reading;

«Dead Men Attack» (Osovets, 1915): Archive Sources Approach (European researcher. 2011. № 12 (15)

This basic geometry video tutorial explains how to calculate the area and circumference of a circle given it's radius and diameter. This video contains a few examples with word problems. This video also explains how to calculate the circumference given the area, and how to calculate the length of the radius and diameter given the area and circumference of the circle.

Area of a Rectangle:
https://www.youtube.com/watch?v=M8JdRHeQBW8

Area and Perimeter:
https://www.youtube.com/watch?v=gtMKsFXjLHw

Area of a Square:
https://www.youtube.com/watch?v=tKPxFv0x4VY

Area of a Triangle:
https://www.youtube.com/watch?v=svWYgZs33bA

Calculating The Height of a Triangle:
https://www.youtube.com/watch?v=a1PR9O1Va84

Area of a Trapezoid:
https://www.youtube.com/watch?v=WBgRnFFGCuQ

_____________________________
Area of a Parallelogram:
https://www.youtube.com/watch?v=k7iV42nkXc0

Area of a Rhombus:
https://www.youtube.com/watch?v=3Jx9gGpGbrA

Area Between Two Squares:
https://www.youtube.com/watch?v=NtAaclKesgs

Area - Rectangles, Triangles, & Circles:
https://www.youtube.com/watch?v=JnLDmw3bbuw

Area & Perimeter of Irregular Shapes:
https://www.youtube.com/watch?v=_e7j6rE7_Pg

How To Calculate Square Footage:
https://www.youtube.com/watch?v=aKcy-XE-LXM

______________________________
Area of a Kite:
https://www.youtube.com/watch?v=RhNeFsYHtE4

Area of an Equilateral Triangle:
https://www.youtube.com/watch?v=vIlWlauZV7E

Area of Regular Polygons:
https://www.youtube.com/watch?v=bwyYgCGNOQ4

Area - Hard Math Problem:
https://www.youtube.com/watch?v=s0gu-LlEM8M

Area - Shaded Region:
https://www.youtube.com/watch?v=yw2cYaPb-Go

Circles - Area, Circumference, Radius:
https://www.youtube.com/watch?v=D4nGkWOPb6M

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

This algebra video tutorial provides a basic introduction into inverse functions. it explains how to find the inverse function by switching the x and y variables. It also explains how to prove if two functions are inverses of each by checking to see if the composite functions of f(g(x)) and g(f(x)) are equal to x. In addition, it explains how to graph the inverse function around the line y=x. Finally, it highlights the difference between the vertical line test and the horizontal line test as it relates to one to one functions and inverse functions. The vertical line test tells if a relation is a function. The horizontal line test tells you if the function is one to one and if the inverse relation is a function.

Introduction to Functions:
https://www.youtube.com/watch?v=DrEXTC6mIO8

Evaluating Functions:
https://www.youtube.com/watch?v=HyNie_PYgsY

Function Operations:
https://www.youtube.com/watch?v=3gaxVHVI4cI

Increasing and Decreasing Functions:
https://www.youtube.com/watch?v=Dyl7jPlJXOM

Relative Maximum & Minimum Values:
https://www.youtube.com/watch?v=GaltHJF6WyI

_____________________________________
Relations and Functions:
https://www.youtube.com/watch?v=wbBY2tTqXDA

Domain and Range From a Graph:
https://www.youtube.com/watch?v=KirGQOwjBVI

How To Find The Domain of a Function:
https://www.youtube.com/watch?v=djT6-YamHaA

Average Rate of Change of a Function:
https://www.youtube.com/watch?v=f_Q0qlwlclQ

The Difference Quotient of a Function:
https://www.youtube.com/watch?v=qQgVomi8lCc

_____________________________________
Evaluating Piecewise Functions:
https://www.youtube.com/watch?v=OYOXMyFKotc

Graphing Piecewise Functions:
https://www.youtube.com/watch?v=Uzw9tsGq2Pw

Composite Functions:
https://www.youtube.com/watch?v=ZFPkQkURSxk

How To Evaluate Composite Functions:
https://www.youtube.com/watch?v=6vQxIG4lJ3w

Composite Functions - Data Table:
https://www.youtube.com/watch?v=6vQxIG4lJ3w

Comp. of 3 Functions - Data Table:
https://www.youtube.com/watch?v=Ote1KvW6BXw

Decomposing Functions:
https://www.youtube.com/watch?v=NmfaC7etZms

_________________________________
Introduction to Inverse Functions:
https://www.youtube.com/watch?v=TN4ybFiuV3k

How To Find The Inverse of a Function:
https://www.youtube.com/watch?v=2zeYEx4eTdc

Verifying Inverse Functions:
https://www.youtube.com/watch?v=6QamgSPprjA

Horizontal Line Test - 1 to 1 Functions:
https://www.youtube.com/watch?v=6u9Qh1Vi_Qw

Vertical Line Test:
https://www.youtube.com/watch?v=Mxe2lX1htNk

Graphing Inverse Functions:
https://www.youtube.com/watch?v=ukEtad_aml4

Composite and Inverse Functions:
https://www.youtube.com/watch?v=GEgFmxxOJno

__________________________________
Even and Odd Functions:
https://www.youtube.com/watch?v=fKyBOLsqRlo

Transformations of Functions:
https://www.youtube.com/watch?v=Tmdrjs9xufc

Linear Functions:
https://www.youtube.com/watch?v=BtcKotD6Ni8

Functions and Graphs - Problems:
https://www.youtube.com/watch?v=kvU9sOzT2mk

Functions - Test Review:
https://www.youtube.com/watch?v=1xATmTI-YY8

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

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

Thousands of parents and educators are turning to the kids’ learning app that makes real learning truly fun. Try Kids Academy with
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Inches, Feet and Yards - Estimating Length | Measurement for Kids | 2nd Grade Math

Install now Kids Academy Talented & Gifted: https://smart.link/5d9b5460c7805

If there is a distance, we find the length of it. We want to know how far a thing is or what’s the length of it. Now length can be measured in three different terms, which are inches, feet, and yard. So, what are these inches, feet, and yards?

These are simply the terms in which we define the length of something. All of them are interrelated with each other.
These terms can be defined in terms of each other.

To put it simply, 12 inches=1 foot and 1 yard= 3 feet. Inch is the smallest term. An inch can be measured in terms of centimeters but that is another term to learn. Simply speaking the distance between your thumb to your knuckle is about 1 inch. The bottle cap is also about 1 inch. So, inch is a very small unit.

These terms help to measure the length and distances. These are very basic measuring terms that the kid must know about in their initial maths lessons.


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Nouns for kids | Types of Noun | Exercise on Noun | Noun English Grammar | @AAtoonsKids

In this video you will learn Noun - A noun is a naming word. The name of something such as persons, places, animals, things, feelings is nouns.

_______________________________________________________________

AAtoons Kids
play N learn
Website - http://www.aatoonskids.com

Facebook Page - https://www.facebook.com/aatoonskids1
Twitter - https://twitter.com/aatoonskids

_______________________________________________________________

Other related Educational Videos

Action Words - https://www.youtube.com/watch?v=krpkQhdkyKw

Rhyming Words - https://www.youtube.com/watch?v=e5DHd27Q4Us

Vocabulary for kids - https://www.youtube.com/watch?v=BmWKWcDZ8z0

Introduce Yourself - https://www.youtube.com/watch?v=YVBcFJ_TyLc

English Alphabets - https://www.youtube.com/watch?v=YSpBzb7E2r0

_______________________________________________________________________________


#Noun
#Noun_English_grammar
#English-Grammar
#Noun_for_kids
#Learn_English
#AAtoonsKids
____________________

Volume of Geometric Shapes
How to use the volume sphere formula in order to calculate the volume.

The formula for the volume of a sphere is 4/3 pi times the radius squared.
The radius of a sphere is half of the diameter.
In this example, I use 3.14 for pi which is the ratio of circumference to the diameter of a circle.

In example two you will use diameter to calculate the volume.

Check out: Surface Area Sphere Demo. I show why the surface area of a sphere is equal to a 4 to 1 ratio to the surface area of the hemisphere of the sphere
.https://www.youtube.com/watch?v=xDXdPB7SbMg

Vertical Angles Explained
Vertical angles in Geometry occur when two lines cross one another. The lines share a common vertex and are opposite each other.
Vertical angles are congruent which means the angle measure is equal. In addition two pairs of vertical angles are created when the lines cross.

Learn how to compare prices using unit rates. A unit rate tells you the cost of one. In order to compare different products, you can set up a unit rate. For example, which is the best buy, 9 can for 10 dollars or 15 cans for 13 dollars. You can create an equivalent fraction by dividing the numerator and denominator by the original denominator.

Definition Unit Rate Short
https://youtube.com/shorts/HMGl28vc7ew

Local winds are winds that do not blow for great distances. In this video, I cover two major types, sea and land and mountain and valley winds. These local winds occur because the land and sea heat up and cool at different temperatures and this produces wind due to low and high-pressure areas.

Learn the value of coins and dollar bills.

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

This video is made to give you knowledge on the basic concepts of ratio and proportion. It also aims to develop your skills in expressing values as ratio or proportion, identifying equivalent ratios, and finding missing term in a proportion.

Preschool Mathematics tutorial Games for K-12 Montessori Homeschool manipulative curriculum using Mortensen Math materials focusing on visualization, using manipulative blocks and trays.

Tutorial geogebra
parallelograms in geogebra help you to learn it.
you can try the video

Here, we will learn how to
1) Copy and edit an existing #GeoGebra resource.
2) Assign a #GeoGebra activity in #Google #Classroom
3) Save & share a GeoGebra construction made within any app
3) Embed GeoGebra applets within various LMS's (OneNote, Schoology, Canvas)
4) Assign a GeoGebra Task using GeoGebra Groups (GeoGebra's own built-in LMS)