Math is logical, functional and just ... awesome. Mathemagician Arthur Benjamin explores hidden properties of that weird and wonderful set of numbers, the Fibonacci series. (And reminds you that mathematics can be inspiring, too!)

Two proofs for the surface area of a sphere

CALCULUS! Today we take our first steps into the language of Physics; mathematics. Every branch of science has its own way to describe the things that it investigates. And, with Physics, that's math. In this episode, Shini talks us...

In this tutorial I show how I synthesized the sound of hydrogen for the "Sound of Hydrogen" video using mathematica - it's a little technical, but you've been requesting it!

Paul Andersen shows you how to calculate the ch-squared value to test your null hypothesis. He explains the importance of the critical value and defines the degrees of freedom. He also leaves you with a problem related to the animal...

Do you think a red minivan would be more expensive than a beige one? Now what if the car was something sportier like a corvette? Last week we introduced the ANOVA model which allows us to compare measurements of more than two groups, and...

How Long To Fall Through the Earth?

In this video Paul Andersen explains how the electric field strength decreases as the square of the radius as you move away from a point charge, or a uniform distribution of charge on a sphere. This is a direct application of Coulomb's...

I'm sure you've all heard about Isaac Newton and that apple that fell on his head and how that was a huge deal to our understanding of gravity. Well... let's talk about that. In this episode of Crash Course Physics, Shini sits down to...

Did you know that when you fall down, the earth falls up to meet you? Explore the counterintuitive equation that describes gravity.

The Order of Operations is Wrong

Michael Jordan's legendary slam dunk from the free throw line has been calculated at 0.92 seconds of pure hang time. But how many seconds could Jordan have gotten were he doing the same jump on Mars? Or Jupiter? Andy Peterson and Zack...

Thanks to the Heising Simons Foundation ( for their support of this video, and of short range gravity research.



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Paul Andersen shows you how to solve simple Hardy-Weinberg problems. He starts with a brief description of a gene pool and shows you how the formula is derived. He then shows you how to solve a couple of sample problems.

In this video Paul Andersen explains the importance of standard deviation. He starts with a discussion of normal distribution and how the standard deviation measures the average distance from the mean, or the "spread" of data. He then...

Continuing with last week's introduction of calculus, Shini leads us through the ways that integrals can help us figure out things like distance when we have several other key bits of information. Say, for instance, you wanted to know...

New ReviewIn this short math video, students learn how to factor a quadratic by grouping using a clear, five-step process. The lesson begins by reviewing the standard form of a quadratic, and then models each step carefully so students can follow...

New ReviewLet's go over a helpful tip when multiplying binomials that I was never taught when I was a student. I started teaching it and it made my life a lot easier because I stopped making mistakes.

New ReviewIn this video we are going to understand how we can identify and remember all of the Pythagorean identities

New ReviewIn this video I will show you step by step how to apply long division to a polynomial to the 4th degree by a quadratic binomial.

New ReviewIn this video I am going to compare the process of long division verse synthetic division.

New ReviewThis video provides a step-by-step guide on performing long division with polynomials (0:00). The presenter emphasizes the importance of arranging terms in descending order (0:19) and demonstrates the process using an example, including...

New ReviewA student sent me this problem to determine which simplified expression is equivalent to the non simplified expression.

New ReviewIn this video we are going to work through a synthentic division problem to see how long it will take us to compled