Algebra I: Free Online Course & Practice
Equations, functions, linear relationships, systems, polynomials, factoring, and quadratics.
High school and adult refreshers8 units40 lessons + 9 assessments + 1 optional review2388 practice & quiz itemsFree
Item counts include repeats and variants. There are 1826 distinct prompt texts after removing variant labels; this is not a count of unique mathematical skills.
Not sure where to start? Take the free 15-minute placement check to identify possible gaps, then practice with instant feedback and worked solutions.
Take the free Algebra I placement check Open the Algebra I courseStarting point and intended outcomes
Suggested preparation: Pre-Algebra arithmetic, fractions, ratios, and simple equations.
Learning goals: Connect linear equations, graphs, and models; solve systems and introductory quadratic problems.
These describe the course's intended scope. A score on one screen or final is only one piece of evidence about these goals.
Course outline
Algebra Foundations
- Expressions and Properties
- Multi-Step Equations
- Linear Inequalities
- Compound Inequalities
- Absolute Value Equations and Inequalities
- Literal Equations
- Formulas and Rearranging Equations
- Algebra Foundations Checkpoint
Functions, Linear Relationships, and Rate of Change
- Functions and Notation
- Domain and Range
- Slope and Rate of Change
- Slope-Intercept Form
- Graphing Lines from Tables and Equations
- Standard Form of a Line
- Point-Slope Form
- Parallel and Perpendicular Lines
- Direct and Inverse Variation
- Average Rate of Change
- Graphing Linear Inequalities in Two Variables
- Linear Relationships Checkpoint
Systems of Linear Equations and Inequalities
- Systems of Linear Equations
- Systems by Substitution
- Systems by Elimination
- Systems Word Problems
- Systems of Linear Inequalities
- Systems Checkpoint
- Algebra I Midterm Exam
Exponents and Polynomials
- Exponents and Polynomials
- Exponent Rules
- Polynomial Operations
- Factoring Foundations
- Exponents and Polynomials Checkpoint
Quadratic Foundations
- Quadratics and Factoring
- Solving Quadratics: Factoring and Completing the Square
- The Quadratic Formula and Discriminant
- Graphing Quadratics Basics
- Quadratic Applications
- Quadratic Foundations Checkpoint
Exponential Functions and Sequences
- Exponential Functions
- Exponential Growth and Decay
- Arithmetic Sequences
- Geometric Sequences
- Exponential Functions and Sequences Checkpoint
Statistics and Data Analysis
- Scatter Plots and Trend Lines
- Line of Best Fit
- Correlation Coefficient
- Two-Way Frequency Tables
- Statistics and Data Analysis Checkpoint
Algebra I Review and Final Exam
Frequently asked questions
Is the Algebra I course free?
Yes. The entire Algebra I course — 50 lessons, 2388 practice and quiz items, including repeats and variants, worked solutions, and the placement check — is free to use at ClearMath Academy.
What does the Algebra I course cover?
Equations, functions, linear relationships, systems, polynomials, factoring, and quadratics. It spans 8 units and 50 lessons, each with a worked example and practice problems with step-by-step solutions.
Who is Algebra I for?
Algebra I is aimed at high school and adult refreshers. You can take a free 15-minute placement check first to choose lessons to try first.
How do I find my gaps in Algebra I?
Take the free Algebra I placement check. It samples selected skills and suggests a practice plan. Skipped or untested topics remain unassessed; this is not a validated readiness certification.