Video is in song form and discusses the circumference, radius, pi and more.  The video shows the formulas for finding circumference and area, and also explains the definition of Pi. (01:51)
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Graphing Systems of Equations
This lesson explains how to solve a system of two equations by graphing.Â  The instructor begins by graphing the line for each equation.Â  Then he demonstrates how to find the point of intersection which is the solution for the system.

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Solving Systems of Linear Equations by Graphing
Instructor uses a white board to demonstrate graphing systems of linear equations. Â Examples include being given two linear equations, finding the slope and y-intercept, and then graphing to determine the point of intersection. (4:49)
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Systems Of Equations With Fractions - Using Substitution
In this video lesson, students learn to solve systems of linear equations that involve fractions. Students also learn to solve linear systems of equations by the method of their choice using the following rules: if one of the variables cancels out when the equations are added together, then use addition, and if a variable is already isolated in one of the equations, then use substitution.
Â (3:23)

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Simplifying Rational Expressions
This video walk the learner through the steps to simplify rational expressions. Â Specific circumstances are discussed and several problems are modeled. Â
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In this video, the instructor talks about adding and subtracting rational expressions.  He first defines what rational expressions are and how they are different from equations.  In general, the instructor states that the idea is to make the expression into a single fraction if possible.  The instructor walks the viewer step by step through three different examples of adding and subtracting rational expressions.

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Basic Algebra : How to Write an Algebraic Expression
Writing an algebraic expression in mathematics involves any combination of variables or letters and numbers. Understand the concept of algebra and its flexible expressions with insight from a math teacher in this video on mathematics.

Expert: Jimmy Chang
Bio: Jimmy Chang has been a math teacher at St. Pete College for nearly a decade. He has a master's degree in math, and his specialties include calculus, algebra, liberal arts, math and trigonometry.
Filmmaker: Christop

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Simplifying Rational Expressions
In this teacher created video, the teacher defines a rational expression.Â  Then the teacher models the steps of simplifying the rational expression on a white board. ( 1:26)
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Complex Numbers - Yay Math
Introduction to complex/imaginary numbers. Defines i and works through several examples with increasing complexity. Using white board in classroom setting. Clear and understandable.Produced by Robert Ahdoot, yaymath.org
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PreCalculus - Functions
For each choice of independent variable x, there is one and only one corresponding value of dependent variable y. This is a very brief overview. (01:17)
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Weight and Capacity
In this lesson learn about weight and capacity.  Watching this video students will learn  two words that can be used to describe weight and five words that can be used to describe capacity.  An interactive activity is part of this lesson where students select the unit that is best to used to describe the weight and capacity of example objects.

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Ku Klux Klan- A Secret History [9/9]
(Caution: Scenes of violence and insensitive racial language)THE 20TH CENTURY(TM) ventures back to the days of the Reconstruction South and through the landmarks in Klan history to tell the complete story of the most famous hate group in America. Discover how the six original Klansmen came together and chose their name. See how the release of America's first blockbuster movie spurred a resurgence in the KKK and how they expanded their target to include Jews, Catholics and immigrants as well as b
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Advanced Algebra - Lecture 5 - Complex Numbers and Geometry (series)
College Algebra with Professor Richard Delaware - UMKC VSI - Lecture 5 - More numbers and geometry. In this Lecture,we learn about complex numbers, area formulas and the Pythagorean theorem.

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History Channel - Biography: Lord Byron Part 2 of 5
NOTE: Educators/Parents: Because of the nature of Lord Byron's life. this biography is suitable for older high school students only. An episode of the series Biography on History Channel dedicated to Lord Byron and produced in 2004. 'George Gordon Byron, later Noel, 6th Baron Byron of Rochdale FRS (22 January 1788â€“ 19 April 1824) was a British poet and a leading figure in Romanticism. Among Byron's best-known works are the brief poems 'She Walks in Beauty', 'When We Two Parted,' and 'So, We'll
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100 Greatest People - Friedrich Nietzsche - 03/04
Video continues with Nietzscheâ€™s life in Switzerland.Â  In this episode they discuss the madness that Nietzsche suffered from.Â  Nietzsche was drugged and sent to live with his mother, here he died.Â  Video then discusses the books that Nietzsche had written during his life.Â  Picture does not change.Â  Video is appropriate for high school students.Â
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Expert Village video.Â  This lesson is taught by Hope Wells.Â  How to teach rhythm to children, including tips for making it fun.Â  Â Good quality video.Â

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How to Teach Piano to Kids: How to Teach Children About the Music Staff
Expert Village video.Â  This lesson is taught by Hope Wells.Â  Video teaches the music staff to children, including tips for making it fun.Â  Â Video teaches children how to read sheet music.Â  Good quality video.Â  Video would be good for any age student who is learning to play the piano.
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How to Teach Piano to Kids: Tips for Teaching Music to Children
Expert Village video.Â  This lesson is taught by Hope Wells.Â  How to teach music to children, video reminds parent what to do when teaching another person.Â  This video includes tips and techniques for making it fun.Â (3:10)
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The Giants of Philosophy - Arthur Schopenhauer - 10/18
'Arthur Schopenhauer (22 February 1788 â€“ 21 September 1860) was a German philosopher known for his atheistic pessimism and philosophical clarity' (Arthur Schopenhauer, Wikipedia, 2009). He was influenced by Plato and Kant, and he, in turn, inlfuenced Einstein, Freud, and Jung among others. Suitable for high school students. Video consists of one still image and narration.
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ON THE SUFFERINGS OF THE WORLD - Arthur Schopenhauer; Philosopher
'Arthur Schopenhauer (22 February 1788 â€“ 21 September 1860) was a German philosopher known for his atheistic pessimism and philosophical clarity' (Arthur Schopenhauer, Wikipedia, 2009). He was influenced by Plato and Kant, and he, in turn, inlfuenced Einstein, Freud, and Jung among others. Suitable for high school students. Video consists of one still image and narration.
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