In ancient Athens, symbols were used to promote religious and democratic ideals and beliefs. Thousands of years later these symbols helped to define the United States.

👉 Learn how to evaluate the integral of a function. The integral, also called antiderivative, of a function, is the reverse process of differentiation. Integral of a function can be evaluated as an indefinite integral or as a definite...

In this video, students learn about equations and how to find their solutions using a bar model. The video uses a real-world example of Jenna making pottery figures to illustrate the concept.

Swift 2 is the latest iteration of Apple's native programming language for iOS devices. If you're an aspiring iOS application developer who is looking to build apps for the App Store, you'll need to use Swift. The language boasts...

This is a lecture video on the topic of calculating speed. The video explains how to calculate the speed of an object based on its distance travelled and time taken. The presenter uses simple examples to illustrate the equations used to...

In this video, the teacher explains how to write algebraic expressions for real-world scenarios. They emphasize the importance of defining unknown variables and correctly ordering them in relation to the operations. Through examples...

A system of linear equations in matrix form can be simplified through the process of Gauss-Jordan elimination to reduced row echelon form. At that point, the solutions can be determined directly from the matrix, without having to...

In this Microsoft Excel tutorial, we learn how to create column charts. There are seven different types of column charts to choose from, each presenting data in a unique way. By selecting the appropriate chart type, you can effectively...

This is a lecture video on Fleming's left hand rule. The video begins by discussing the magnetic field produced by permanent magnets and how a magnetic field can also be produced by a current carrying wire. The motor effect is also...

👉 Learn how to divide fractions. To divide two fractions, we multiply the first fraction by the reciprocal of the second fraction. (The reciprocal of a fraction is swapping the positions of the numerator and the denominator). It is...

There is a huge range of ways that gender has been understood and represented in the history of art. We look at a few examples that show us gender is a concept that has never been fixed: Hermaphroditos by the ancient Greeks, Titian's...

The 11th episode in a very long series about the American presidential elections from 1788 to the present. I hope to have them done by Election Day 2016. In 1828, after basically 5 years of his supporters campaigning, Andrew Jackson gets...

In this video, the teacher explains the concept of inequalities and how they can have multiple solutions. Using a real-world example of a person making pottery figures, the teacher demonstrates how to solve an inequality using...

In this educational video, the instructor explains how to calculate the mean, median, and mode from a frequency table. The video walks through an example question of calculating the mean, median, and mode for the number of cars produced...

The video discusses vectors and how they describe movement along and up or down. The different notations for vectors are explained, including when a coordinate plane is not available. The concepts of magnitude and direction in vectors...

In the previous lecture we showed how any quadratic equation can be solved by "completing the square". We also showed geometrically that any general form quadratic expression "x-squared + bx + c" where c has a value of "(b/2) squared"...

In this video, students learn how to add mixed numbers using an area model. The teacher explains the common mistake of not understanding the significance of the whole number in the mixed fraction. Through the use of area models, students...

Roman numerals are an ancient base-10 natural number system. Understanding Roman numerals (a sign-value notation) can shed light on our modern number system which uses positional notation.

This video provides a tutorial on how to calculate averages from data presented in a group frequency table. The three types of averages covered in the video are the mean, median, and mode. The example used in the video is based on the...

This video explains some internal documentation needed for a network. This clip is from the chapter "Building a Real-World Network" of the series "CompTIA Network+ Certification N10-007: The Total Course".In this section, you will learn...

We will kick off this section by a quick review of strings in C/C++.
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This clip is from the chapter "Strings" of the series "Learn and Master C Programming For Absolute Beginners!".In this section, we work with strings and...

Jason Stanley is the Jacob Urowsky Professor of Philosophy at Yale University. Before coming to Yale in 2013, he was Distinguished Professor in the Department of Philosophy at Rutgers University. He has also been a Professor at the...

👉 Learn how to evaluate the integral of a function. The integral, also called antiderivative, of a function, is the reverse process of differentiation. Integral of a function can be evaluated as an indefinite integral or as a definite...

Dr. Joy Lawson Davis is a career educator with over 30 years of experience in varied roles: classroom teacher; district program coordinator of gifted services; state level Director of Gifted Services; author, researcher, consultant, and...