1 year · 180 lessons · 1,800 questions
Algebra I
A full year on algebra alone — variables, equations, functions, lines, systems, and quadratics, one careful step at a time.
Algebra I is taught in Grade 9. Each year below is a complete course in its own right, with its own units, its own quizzes, and its own downloads.
Year by year
| Year | Units | Lessons | Questions | Link |
|---|---|---|---|---|
| Grade 9 | 15 | 180 | 1,800 | Open the course → |
What each year covers
Open a year to see its units. Unit headings come straight from the lessons; where a course does not name its units, the first lesson of the unit is shown instead.
Grade 9 15 units · 180 lessons
- 1Foundations of Algebra
- 2Solving One-Variable Equations
- 3Inequalities
- 4Relations and Functions
- 5Linear Equations and Slope
- 6Writing and Applying Linear Equations
- 7Systems of Equations
- 8Exponents and Scientific Notation
- 9Polynomials
- 10Factoring Polynomials
- 11Rational Expressions and Equations
- 12Radical Expressions and Equations
- 13Quadratic Functions
- 14Data, Statistics, and Probability
- 15Comprehensive Review and Applications