Lumenary Prep

The digital SAT

SAT

Reading and Writing and Math for the digital SAT, with original lessons and practice.

AI-drafted · awaiting expert reviewThe digital SAT for the 2026–27 testing year, as specified in College Board's Assessment Framework for the Digital SAT Suite, version 4 (September 2026), and the Fall 2026 Bluebook test directions. Facts verified on College Board's site on 9 November 2026.

A complete, original course for the digital SAT. Lessons follow College Board's published specification skill by skill: the four Reading and Writing domains (Information and Ideas, Craft and Structure, Expression of Ideas, Standard English Conventions) and the four Math domains (Algebra, Advanced Math, Problem-Solving and Data Analysis, Geometry and Trigonometry). Each lesson teaches the rules with worked examples and common traps, and is followed by practice questions in the test's own formats, including typed-in Math answers, with full explanations. A full-length practice test mirrors the real sections, modules, question counts, domain mix and timing. Use it alongside College Board's free official practice in Bluebook.

About the exam

Syllabus

23 lessons, 239 practice questions and 1 timed practice exam.

Getting Started

  1. How the digital SAT works

    The two sections and their modules, timing, the adaptive design, question formats and the rules for typing Math answers, the Bluebook tools, the calculator and reference sheet, and how scores are reported.

    1. How the digital SAT worksFree sample30 min

Reading and Writing

  1. Information and Ideas

    About 26% of Reading and Writing: finding a text's central idea and key details, choosing the textual or quantitative evidence that best supports a claim, and completing a text with the most logical inference.

    1. Central ideas and details(included with the course)35 min
    2. Command of evidence, textual and quantitative(included with the course)45 min
    3. Inferences(included with the course)35 min
  2. Craft and Structure

    About 28% of Reading and Writing: choosing the precise word for a context, describing a text's structure and purpose, and connecting two texts on a related topic.

    1. Words in contextFree sample40 min
    2. Text structure and purpose(included with the course)40 min
    3. Cross-text connections(included with the course)35 min
  3. Expression of Ideas

    About 20% of Reading and Writing: choosing the transition that fits the logic of a text, and combining a student's notes into a sentence that meets a stated goal.

    1. Transitions(included with the course)35 min
    2. Rhetorical synthesis(included with the course)35 min
  4. Standard English Conventions

    About 26% of Reading and Writing: punctuating sentence boundaries, and the form, structure and sense of words in a sentence (agreement, possessives, verb forms and tenses, modifier placement).

    1. Sentence boundaries(included with the course)50 min
    2. Agreement and possessives(included with the course)45 min
    3. Verbs and modifiers(included with the course)45 min

Math

  1. Algebra

    About 35% of Math: linear equations in one and two variables, linear functions, systems of two linear equations, and linear inequalities, in and out of context.

    1. Linear equations and linear functions(included with the course)45 min
    2. Systems of linear equations and linear inequalities(included with the course)45 min
  2. Advanced Math

    About 35% of Math: equivalent expressions, nonlinear equations and systems, and quadratic, exponential, polynomial and rational functions.

    1. Equivalent expressions(included with the course)40 min
    2. Nonlinear equations and systems(included with the course)50 min
    3. Nonlinear functions(included with the course)50 min
  3. Problem-Solving and Data Analysis

    About 15% of Math: ratios, rates, units and percentages; one- and two-variable data; probability; inference from samples; and what a study can and cannot show.

    1. Ratios, rates, units and percentages(included with the course)40 min
    2. Data distributions and scatterplots(included with the course)40 min
    3. Probability, sampling and statistical claims(included with the course)40 min
  4. Geometry and Trigonometry

    About 15% of Math: area and volume; lines, angles and triangles; right triangles and trigonometry; and circles, including radians and circle equations.

    1. Lines, angles, triangles, area and volume(included with the course)45 min
    2. Right triangles and trigonometry(included with the course)40 min
    3. Circles(included with the course)45 min

Practice exams

  • SAT Practice Test 1 (full length)98 questions · 134 minutesIncluded with the course

Free official resources

Use these alongside the course. They are free, and they are the final word.

  • Full-length practice tests in BluebookCollege Board's free, scored, adaptive practice tests in the same app and interface you will use on test day. Review your results and every answer in My Practice. Take at least one before test day.
  • Bluebook, College Board's testing appDownload it and try the test preview to get comfortable with the timer, calculator, reference sheet, highlighting and answer entry.
  • Bluebook testing toolsWhat each on-screen tool does: timer, Desmos calculator, reference sheet, highlights and notes, mark for review, option eliminator, line reader and zoom.
  • Paper practice testsFree downloadable nonadaptive practice tests with scoring guides and answer explanations. College Board recommends them only for students who will test with paper-based accommodations.
  • Student Question BankThousands of official practice questions, filterable by section, domain, skill and difficulty. Useful for targeted work after each unit of this course.
  • Official SAT Prep on Khan AcademyFree practice developed with College Board, linked to your Bluebook practice results.
  • Calculator policyWhich handheld calculators are allowed, and how the built-in Desmos calculator works.
  • How the SAT is structuredCollege Board's own summary of the sections, modules, timing and adaptive design.

SAT is a trademark registered by College Board, which is not affiliated with and does not endorse Lumenary Prep. Every lesson and question here is original; use College Board's free official practice tests alongside it. Every source this course cites.