Videos exploring why algebra was developed and how it helps us explain our world.

Exploring a world where both sides aren't equal anymore!

Understanding the coordinate plane, slope, and intercept. Writing, solving, and graphing linear equations and inequalities.

Solving a system of equations or inequalities in two variables by elimination, substitution, and graphing.

Identifying, solving, and graphing various types of functions.

Solving quadratics through factoring, completing the square, graphing, and the quadratic equation.

Solving exponential and radical expressions and equations. Using scientific notation and significant figures.

Using polynomial expressions and factoring polynomials.

You have probably been wondering whether our powers of algebraic problem solving break down if we divide by the variable or we have entire expressions in denominator of a fraction. Well, they don't! In this topic, you'll learn how to interpret and manipulate algebraic ratios and rational expressions (when you have one algebraic expression divided by another)!

Log-a-what? No, this tutorial is about neither chopped wood nor music (actually logarithms do have applications in music), but it is fascinating nonetheless. You know how to take an exponent. Now you can think about what exponent you have to raise a number to to get another number. Yes, I agree--unstoppable fun for the whole family. No, seriously, logarithms are used everywhere (including to measure earthquakes and sound).

Identifying and graphing circles, ellipses, parabolas, and hyperbolas.

Understanding and solving matrices.

Understanding and solving equations with imaginary numbers.