Videos

Taking percentages

Taking percentages

Growing by a percentage

Growing by a percentage

Another Percent Word Problem

Another Percent Word Problem

More percent problems

More percent problems

systems of equations

systems of equations

Introduction to Ratios (new HD version)

Introduction to Ratios (new HD version)

Ratio problem with basic algebra (new HD)

Ratio problem with basic algebra (new HD...

More advanced ratio problem--with Algebra (HD version)

More advanced ratio problem--with Algebr...

Introduction to Ratios

Introduction to Ratios

Advanced ratio problems

Advanced ratio problems

Age word problems 1

Age word problems 1

Age word problems 2

Age word problems 2

Level 1 multiplying expressions

Level 1 multiplying expressions

Solving a quadratic by factoring

Solving a quadratic by factoring

Introduction to i and Imaginary Numbers

Introduction to i and Imaginary Numbers

Calculating i Raised to Arbitrary Exponents

Calculating i Raised to Arbitrary Expone...

Complex Numbers (part 1)

Complex Numbers (part 1)

Complex Numbers (part 2)

Complex Numbers (part 2)

Introduction to the quadratic equation

Introduction to the quadratic equation

Quadratic Equation part 2

Quadratic Equation part 2

Completing the square

Completing the square

i as the Principal Root of -1 (a little technical)

i as the Principal Root of -1 (a little...

Quadratic Formula (proof)

Quadratic Formula (proof)

Quadratic Inequalities

Quadratic Inequalities

Quadratic Inequalities (Visual Explanation)

Quadratic Inequalities (Visual Explanati...

Introduction to functions

Introduction to functions

Functions Part 2

Functions Part 2

Functions (Part III)

Functions (Part III)

Functions (part 4)

Functions (part 4)

Domain of a function

Domain of a function