Khan Academy

Volume of triangular prism & cube (K-A)

Density word problem: blimp (K-A)

Cylinder volume & surface area (K-A)

Volume formulas review (K-A)

Volume of a cone (K-A)

Volume of a sphere (K-A)

Volume of triangular prism & cube (K-A)

Absolute value graphs review (K-A)

Graphing absolute value functions (K-A)

Scaling & reflecting absolute value functions: equation (K-A)

Scaling & reflecting absolute value functions: graph (K-A)

Shifting absolute value graphs (K-A)

Introduction to piecewise functions (K-A)

Worked example: domain & range of piecewise linear functions (K-A)

Worked example: domain & range of step function (K-A)

Worked example: evaluating piecewise functions (K-A)

Worked example: graphing piecewise functions (K-A)

Abstract-ness (K-A)

Origins of algebra (K-A)

The beauty of algebra (K-A)

Why all the letters in algebra? (K-A)

Evaluating an expression with one variable (K-A)

Evaluating expressions with one variable (K-A)

What is a variable? (K-A)

Why aren't we using the multiplication sign? (K-A)