Step-by-step math explanations

Written explanations for 375 lessons across Pre-Algebra, Algebra 1, Geometry, and Algebra 2.Worked examples and a practice question on every one.

Pre-Algebra

90 lessons

Foundations Review

Exponents & Scientific Notation

Real Numbers

Algebraic Expressions

Equations & Inequalities

Linear Relationships

Functions

Systems of Equations

Triangles & the Pythagorean Theorem

Transformations

Congruence & Similarity

Volume & Surface Area

Data & Statistics

Probability

Financial Literacy

Algebra 1

107 lessons

Expressions

Solving Equations

Linear Inequalities

Functions

Linear Functions

Writing Linear Equations

Systems of Equations

Exponents & Roots

Exponential Functions

Polynomials

Quadratic Functions

Statistics

Sequences

Geometry

96 lessons

Triangles & the Pythagorean Theorem

Tools of Geometry

Angles

Proof & Parallel Lines

Transformations & Symmetry

Congruent Triangles

Triangle Relationships

Quadrilaterals

Similarity

Circles

Area & Volume

Probability

Algebra 2

82 lessons

Right Triangles & Trig

Functions

Linear Equations & Systems

Quadratic Functions

Polynomial Functions

Polynomial Equations

Radical Functions

Exponential Functions

Logarithms

Statistics

Trigonometry

Trig Identities & Equations

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