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SAT · Learn
36 lessons in 8 units, about 53 h 50 min of reading and core practice. Each lesson ends with a quick check.
Unit 1
About 28% of scored Reading and Writing questions and always the first block of each module: using precise vocabulary in context, analyzing a text’s purpose and structure, and connecting two texts.
4 lessons · 7 h 30 min of study · ≈14% of the test
Unit 2
About 26% of scored Reading and Writing questions: understanding central ideas and details, using textual and quantitative evidence, and drawing logical inferences.
4 lessons · 6 h 40 min of study · ≈13% of the test
Unit 3
About 26% of scored Reading and Writing questions: editing sentence boundaries and punctuation (Boundaries) and grammar and usage (Form, Structure, and Sense). Fully rule-based, so it is the fastest route to R&W points.
5 lessons · 7 h 30 min of study · ≈13% of the test
Unit 4
About 20% of scored Reading and Writing questions and always the last block of each module: choosing logical transitions and using student notes to accomplish a stated rhetorical goal.
2 lessons · 3 h 10 min of study · ≈10% of the test
Unit 5
About 35% of scored Math questions: linear equations, linear functions, systems of linear equations and linear inequalities, in pure and real-world forms.
5 lessons · 7 h of study · ≈18% of the test
Unit 6
About 35% of scored Math questions and home of most hard module 2 items: equivalent expressions, quadratic and other nonlinear equations and systems, and quadratic, exponential, polynomial and rational functions.
6 lessons · 9 h 30 min of study · ≈18% of the test
Unit 7
About 15% of scored Math questions: proportional reasoning, percentages, units, statistics, probability and study design.
6 lessons · 6 h 40 min of study · ≈8% of the test
Unit 8
About 15% of scored Math questions: area and volume, lines, angles and triangles, right-triangle and unit-circle trigonometry, and circles. The reference sheet is always available.
4 lessons · 5 h 50 min of study · ≈8% of the test
Start here
Craft and structure · Lesson 1 of 4
The single most common R&W question type (about 4–5 per module). Use context clues to choose the most logical and precise word or phrase for a blank, or decide what a word most nearly means as used.
2 h of study≈6% of the test
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Every lesson is free to read. With an account, finished lessons are ticked off, quick checks feed your mastery, and flashcards come back for review.
Strategy, scoring and test day, beyond the syllabus.
Learn, then practise
Each lesson ends with three quick questions. For more, practice adapts to the topics you’re weakest on.
Open practice