Clarify complex math concepts with a helpful video. Learners view ways to work with ratios and proportions while discussing vocabulary and notation. After solving proportions, they apply the new strategy to word problems.

Got that factoring thing down? Time to apply it! A helpful video explains the process of simplifying a rational expression, showing pupils how to factor a majority of expressions using special patterns. Here is a great way to begin...

Practice is an important learning tool. This practice problem allows students to apply their know-how to factoring a binomial with a difference of squares. Sal explains his process briefly, making this video suitable for those already...

Sal is plotting away in this video - but don't worry, it's nothing suspicious. He introduces linear equations, taking viewers through a few simple examples before applying the knowledge to more complex word problems.

The process for sequences doesn't change just because the terms are fractions. Given a sequence composed of fractional terms, pupils see how to write an explicit algebraic formula to represent the sequence. The video then shows them how...

This presentation covers the basic definition of exponents, raising something to the exponent zero, simplifying negative exponents, multipling powers of the same base, and dividing powers with the same base. The presenter then...

It's your birthday! But, maybe other people's, too. An illuminating video describes how to apply geometric probability distributions in real-world situations. It then reveals how probability helps explain the birthday paradox.

You can bet on Bayes. Continuing from the previous video, scholars learn about Bayesian statistics and hypothesis testing. The 25th installment of the Crash Course Statistics series applies these concepts to continuous data and to...

A statistic of interest is often affected by multiple variables. Continuing from the previous lesson in the Crash Course Statistics playlist, the instructor explains how to apply the ANOVA calculations to multiple variables that have an...

How many of you found the video to be useful? Young statisticians learn about surveys in the 10th installment of the Crash Course Statistics playlist. An informative video describes different sampling methods and possible sources of bias.

The basic rules of exponents are covered here. After defining an exponent, the presentation covers the following rules and shows examples of multiplying powers with the same base, simplifying monomials that are multiplied, raising a...

The laws of exponents are explained in this video. Topics include raising something to the zero power, rewriting an expression that has a negative number as an exponent, multiplying powers with the same base, raising a power to a...

An informative video explains the density of particles immediately after the Big Bang, as well as the concept that whenever a particle was released, it would merge with another particle. Sal develops the concept of being able to receive...

In this video, you will learn how to solve inequalities in algebra that only have one variable. You will learn that solving inequalities is very similar to solving equations and many of the same rules apply. After we arrive at the...

A video that demonstrates how to set up and solve systems of equations in order to answer word problems. [12:20]