We've reached the grand finale of our four part series on human reproduction: BABIES! Today Hank walks you through the stages of pregnancy, beginning with how a zygote develops into blastomeres to a morula to a blastocyst and finally to...

You're being watched. That sounded more sinister than I intended, but online, it's true. Facebook, Instagram, Amazon, Netflix... the list goes on and on. They're watching what you do, what you shop for, what you watch... all of it. And...

A bit of the history behind how we came to use the symbol "pi" to represent what it does today, and how Euler used it to refer to several different circle constants.

We try not to get into too much great man history here at Crash Course, but we have to admit: Napoleon Bonaparte is a pretty big deal. Join us as we track the rise, further rise, fall, rise, fall, mortal fall, and posthumous rise of...

Ever call someone OCD because they like to have a clean apartment? Ever tell someone you have a phobia of spiders when, in fact, they just creep you out a little? In this episode of Crash Course psychology, Hank talks about...

Should you go to film school? Great question? But there aren't necessarily a lot of direct answers. Do you want to go to Hollywood? Do you want to make movies in your spare time? Do you want to learn about world cinema? Do you want to be...

Not sleeping for days on end. Long periods of euphoria. Racing thoughts. Grandiose ideas. Mania. Depression. All of these are symptoms of Bipolar Disorder. In this episode of Crash Course Psychology, Hank talks about mood...

In this episode of Crash Course, Hank introduces you to the complex history and terminology of Anatomy & Physiology. -- Table of Contents: Anatomy: The Structure of Parts 2:34 Physiology: How Parts Function 3:50 Complementarity of...

In 1942, a mother-daughter duo named Katharine Cook Briggs and Isabel Briggs Myers developed a questionnaire that classified people's personalities into 16 types. Called the Myers-Briggs Type Indicator, or MBTI, it would go on to become...

Beer & Biodiversity

In 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...

In this math video we will simplify a polynomial expression by using the difference of squares property.

In this math video, viewers will match equivalent expressions. We will learn how to expand and simplify linear expressions by combining like terms and using the distributive property. We’ll work through four linear expressions, each...

How much risk will your project take on? There are three similar measures we use. I want to explore the comparisons between: Risk Tolerance, Risk Appetite, and Risk Capacity.

In this video we will cover how to identify an example of easy medium and hard examples of factoring down a polynomial to it's linear factorization.

There are a couple of different techniques to factoring quadratics with fractions. In this video I am going to walk you through dealing with fractions to make factoring much easier.

When factoring when a=1 there is a couple of ways we can approach the topic. In this video I will provide a couple of different methods

Factoring quadratics when a is not 1 is probably one of the most challenging topics for students when it comes to factoring. In this video I will follow multiple techniques you can follow for binomials and trinomials.

Let's start with a basic factoring technique which is factoring out the GCF of binomials. We are looking for common factors of each term that we can "factor" out so we can rewrite the expression as a product.

In this video we are going to cover the properties of exponents that students most often forget and get confused by,.

When students are simplifying rational expressions this is one of the most classic mistake I see students make.

In this video I am going to break down a very simple and basic example to understand how long division works with polynomials

In this video I will expose the difference in what simply adding a power can do to simplify an expression. We will break down expanding the same binomial to the 2nd and third power.

In this video I am going to detail the factoring must knows to understand how to factor quickly and effectively