Zach Star
Why imaginary numbers are needed to understand the radius of convergence
Why imaginary numbers are needed to understand the radius of convergence
Bozeman Science
Resistivity
In this video Paul Andersen explains how the resistivity of a material opposes the flow of charge. Conductors (like metal) will have a low resistivity and insulators will have a high resistivity. Semiconductors will have a moderate...
Brian McLogan
Simplify Rational Expressions | Rational Functions | Pre-Calculus
In this video we will cover simplifying rational expressions. In addition to simplifying rational expressions we are going to cover simplifying complex fractions, adding, subtracting, multiplying and dividing rational expressions. We...
TED Talks
TED: This company pays kids to do their math homework | Mohamad Jebara
Mohamad Jebara loves mathematics -- but he's concerned that too many students grow up thinking that this beautiful, rewarding subject is difficult and boring. His company is experimenting with a bold idea: paying students for completing...
Welch Labs
Imaginary Numbers Are Real (Part 9: Closure)
The last video in a series about imaginary numbers demonstrates the need for complex numbers. Math pupils learn that they need to include the square root of negative one, the building block of the complex...
Flipped Math
Quadratic Formula
The quadratic formula is what works—always. Instruct your classes on the application of the quadratic formula using a thorough video lesson followed by provided practice problems. The lesson connects algebraic solutions to graphical...