Understanding algebra is the key to advanced mathematics. The lessons below walk you through how to solve common algebra problems and how to think about different algebra concepts.
Introduction
The basics (before algebra)
- What is an integer?
- Multiplying Fractions
- Understanding exponents
- PEMDAS and the order of operations
Algebraic expressions and simplifying
Operations with polynomials
Solving equations
- How to solve linear equations with one variable
- Solving quadratic equations with the quadratic formula
- Absolute value equations
- Using wolfram alpha to solve equations
Graphing
General
The graphs of linear equations
- Finding the slope of a line
- Lines with a slope of zero
- Lines with undefined slope
- Graphing linear equations
- The standard form of a line
Systems of equations
Functions
Matrices
- Matrix notation and the size of a matrix
- Adding and subtracting matrices, and multiplying a matrix by a constant
- Multiplying matrices (includes animation of the process)
- Multiplying matrices on the TI83 or 84 calculator