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Algebra basics

Unit 1: Foundations

Negative numbers: FoundationsAbsolute value: FoundationsExponents: FoundationsSquare roots: FoundationsOrder of operations: Foundations
Fractions: FoundationsDecimals, fractions and percentages: FoundationsOperations with decimals: FoundationsArea of triangles: FoundationsCircumference and area of circles: Foundations

Unit 2: Algebraic expressions

Introduction to variables: Algebraic expressionsSubstitution & evaluating expressions: Algebraic expressionsWriting algebraic expressions: Algebraic expressions
Combining like terms: Algebraic expressionsDistributive property: Algebraic expressionsEquivalent algebraic expressions: Algebraic expressionsNested fractions: Algebraic expressions

Unit 3: Linear equations and inequalities

One-step equations: Linear equations and inequalitiesTwo-steps equations: Linear equations and inequalitiesMulti-step equations: Linear equations and inequalities
One-step inequalities: Linear equations and inequalitiesTwo-step inequalities: Linear equations and inequalitiesMulti-step inequalities: Linear equations and inequalitiesWriting & solving proportions: Linear equations and inequalities

Unit 4: Graphing lines and slope

Coordinate plane: Graphing lines and slopeSolutions to two-variable linear equations: Graphing lines and slopex-intercepts and y-intercepts: Graphing lines and slopeSlope: Graphing lines and slope
Horizontal & vertical lines: Graphing lines and slopeSlope-intercept form intro: Graphing lines and slopeWriting slope-intercept equations: Graphing lines and slopeGraphing two-variable inequalities: Graphing lines and slope

Unit 5: Systems of equations

Systems of equations intro: Systems of equationsElimination method for systems of equations: Systems of equationsSubstitution method for systems of equations: Systems of equations
Number of solutions to systems of equations: Systems of equations

Unit 6: Expressions with exponents

Exponent properties intro : Expressions with exponentsNegative exponents: Expressions with exponentsExponent properties (integer exponents) : Expressions with exponents
Scientific notation intro: Expressions with exponentsScientific notation word problems: Expressions with exponents

Unit 7: Quadratics and polynomials

Adding & subtracting polynomials: Quadratics and polynomialsMultiplying binomials: Quadratics and polynomialsSpecial products of binomials: Quadratics and polynomialsFactoring polynomials by taking common factors: Quadratics and polynomials
Factoring quadratics 1: Quadratics and polynomialsFactoring quadratics 2: Quadratics and polynomialsFactoring quadratics: Difference of squares: Quadratics and polynomialsFactoring quadratics: Perfect squares: Quadratics and polynomialsSolving quadratic equations by factoring: Quadratics and polynomials

Unit 8: Equations and geometry

Equations & geometry: Equations and geometryTriangle angles: Equations and geometryPythagorean theorem: Equations and geometry
Triangle similarity intro: Equations and geometrySolving similar triangles: Equations and geometry

Course challenge

Test your knowledge of the skills in this course. Have a test coming up? The Course challenge can help you understand what you need to review.

Review articles

One-step inequalities review
Exponents review
Slope-intercept form review
Simplifying square roots review
Elimination method review (systems of linear equations)
Community questions