Free SAT Study Guide and Courses

Solve SAT Math faster with step-by-step lessons, worked examples, and practice in the built-in Desmos calculator.

Beginner to GOAT Mode

Master linear equations, functions, systems, and inequalities with efficient algebra and purposeful Desmos methods.

Beginner to intermediate

Rewrite expressions and solve quadratics, radical, rational, polynomial, and exponential equations with the fastest reliable method.

Beginner to advanced

Read, build, and transform quadratic, exponential, polynomial, and rational functions and models.

Intermediate to advanced

Solve ratio, rate, percent, statistics, probability, sampling, and experimental-design questions with clear setup and interpretation.

Beginner to advanced

Solve SAT area, volume, triangle, trigonometry, circle, and coordinate-geometry questions with efficient visual reasoning.

Beginner to advanced

Punctuate sentence boundaries and extra information, and fix verbs, pronouns, possessives, and modifiers with one quick test per question type.

Beginner to advanced

Find the main idea, complete a text with a logical inference, and choose the quotation, finding, or data that supports a claim.

Intermediate to advanced

Choose the precise word in context, name what a sentence or a whole text is doing, and predict how one author would respond to another.

Beginner to advanced

Choose the most logical transition and build the sentence from a student's notes that meets every part of the goal.

Beginner to advanced