➕ Math
Algebra 1
Equations, inequalities, linear functions, systems, exponents, polynomials, factoring and quadratics, explained step by step and in fun ways that stick.
Aligned to the Common Core High School Algebra (HSA) and Functions (HSF) standards used, or closely matched, by most US states. 33 of 47 planned lessons are live. New ones are added every week.
Unit 1: Equations
Balance, undo, and solve.
Order of Operations
Ready · 14 minCombining Like Terms
Ready · 13 minThe Distributive Property
Ready · 12 minSolving One-Step Equations
Ready · 11 minSolving Two-Step Equations
Ready · 10 minSolving Multi-Step Equations
Ready · 14 minEquations with Variables on Both Sides
Ready · 15 minLiteral Equations and Formulas
Ready · 12 minUnit 2: Inequalities
When the answer is a whole range.
Unit 3: Linear Functions
Lines, slopes and everything on a graph.
Unit 4: Systems of Equations
Two equations, one answer.
Unit 5: Exponents and Polynomials
Powers, scientific notation and polynomial math.
Unit 6: Factoring
Un-multiplying expressions.
Unit 7: Quadratics
Parabolas and the equations behind them.
Graphing Quadratic Functions
Ready · 16 minSolving Quadratics by Factoring
Ready · 17 minCompleting the Square
Coming soonThe Quadratic Formula
Coming soonThe Discriminant
Coming soonUnit 8: Functions and Sequences
Rules that turn inputs into outputs.
Function Notation
Coming soonDomain and Range
Coming soonArithmetic Sequences
Coming soonGeometric Sequences
Coming soonExponential Growth and Decay
Coming soonUnit 9: Radicals
Square roots without the fear.
Simplifying Radicals
Coming soonOperations with Radicals
Coming soonUnit 10: Data and Statistics
Making sense of numbers.