Decoding the 2025-26 Digital SAT Curriculum: Every Topic That's Actually Tested

The "S" in SAT should stand for "Standardized." This is the most standardized test ever made. College Board repeats questions across tests and years - and because of that, they are notoriously secretive about what they actually test. The only way to find out is to go through the limited official materials: the College Board question bank, Bluebook full-length tests, and Khan Academy practice questions. We went through thousands of those questions to produce this list.

The result: the 2025-26 Digital SAT Math section tests five Algebra topics, three Advanced Math topics, eight Problem Solving topics, and six Geometry topics - and nothing else. The Reading and Writing module tests a fixed set of named skills, not broad comprehension or general grammar knowledge.

Why does the SAT test the same things every year?

The Digital SAT tests the same Algebra, the same Geometry, and the same grammar rules each year because it is a standardized test - every student must be evaluated on the same bar. College Board cannot change that bar year to year without invalidating score comparisons.

This predictability is the most underused advantage in SAT prep. Students who have analyzed official questions know exactly what to prepare. Students who study general math or general grammar are doing extra work for no score benefit.

What Algebra topics are on the 2025-26 Digital SAT?

The 2025-26 Digital SAT Algebra domain covers exactly five topic areas. Every Algebra question on the test maps to one of these.

1. Linear Equations in One Variable
2. Linear Equations in Two Variables
3. Linear Functions
4. Linear Systems
5. Linear Inequalities

No quadratics appear in the Algebra domain — those live in Advanced Math. No matrix equations. No absolute value equations. If a question involves a straight line, slope, or a two-variable system, it belongs to one of these five buckets.

What Advanced Math topics does the SAT test?

The Advanced Math domain on the 2025-26 Digital SAT covers three topic areas. This is where students encounter quadratics, polynomials, and exponential functions, which are especially prevalent in the harder Module 2.

1. Equivalent Expressions — factorization, like terms, exponent rules, and rational expressions
2. Nonlinear Functions — quadratic, absolute value, exponential, rational, square root, and polynomial functions
3. Nonlinear Equations — solving equations involving the function types above

Equivalent Expressions is the algebra of simplification. If a question asks you to rewrite an expression in a different form, it falls here. Nonlinear Functions and Nonlinear Equations together cover every curve and non-straight-line relationship on the test.

What Problem Solving and Data Analysis topics appear on the SAT?

The Problem Solving and Data Analysis domain on the 2025-26 Digital SAT covers eight distinct topic areas. This domain leans on real-world scenarios — graphs, tables, experiments, and unit conversions.

The Experiments topic trips up many students. Questions here ask you to evaluate whether a study's conclusion is valid — not to run the statistics yourself. The key question is always: does the sample support the claim?

What Geometry and Trigonometry topics are on the Digital SAT?

The Geometry and Trigonometry domain covers six topic areas on the 2025-26 Digital SAT. Trigonometry here means SOH CAH TOA and special triangles — not identities or inverse functions.

1. Angles — angle relationships, parallel lines, transversals
2. Similar and Congruent Triangles
3. Areas and Volumes — Rectangular Prism, Cylinder, Sphere, Cone, and Pyramid
4. Circles — Circle theorems and circles on the coordinate plane
5. Unit Circle Trigonometry — basic sine and cosine on the unit circle
6. Trigonometry — Pythagorean Theorem, SOH CAH TOA, Special Triangles (30-60-90 and 45-45-90), and the identity cos x = sin(90 − x)

A note on trig angles

Inverse trigonometric functions are not on the 2025-26 SAT. If a question asks you to find an angle, that angle must come from a right triangle you can see in the diagram. It will be 30, 45, or 60 degrees — every time. Never use arcsin or arctan on the SAT.

What math topics are NOT on the 2025-26 Digital SAT?

These topics appear in high school math courses but do not appear on the 2025-26 Digital SAT. Do not spend time preparing them for the test.

The list of what is on the SAT Math section is exhaustive. If a topic doesn't appear in the four domains above, it will not be on the test. Students who study logarithms or calculus for the SAT are preparing for a test that doesn't exist.

What does the SAT test under Craft and Structure?

The Craft and Structure domain on the 2025-26 Digital SAT Reading and Writing module tests five named skills. These questions focus on how a text is built and what individual parts are doing.

1. Vocabulary — find the missing word, or interpret what a word means in context
2. Overall Structure — how the passage is organized as a whole
3. Main Purpose — why the author wrote this passage
4. Function of an Underlined Sentence — what role a specific sentence plays in the passage
5. Cross-Text Connections — how two passages relate to each other

Vocabulary questions on the Digital SAT are not about defining obscure words. They test whether you can identify the word that fits the logical and tonal flow of the sentence. Context is everything.

What does the SAT test under Information and Ideas?

The Information and Ideas domain covers six question types that test how accurately you extract and use what a passage says.

1. Main Ideas — what the passage is primarily about
2. Details — specific facts or descriptions stated in the passage
3. Command of Evidence — Data — reading graphs, tables, and charts
4. Command of Evidence — Text — finding textual support for a claim
5. Illustrate a Claim Using Quotes — choosing the quote that best supports a given claim
6. Inferences — what the passage implies but does not directly state

Command of Evidence questions (both data and text) appear frequently and reward a specific approach: find the evidence first, then pick the answer. Students who pick an answer first and then look for support get these wrong at a much higher rate.

What grammar rules does the SAT test under Standard English Conventions?

The Standard English Conventions domain on the 2025-26 Digital SAT tests 13 specific grammar topics. These are the only grammar rules you need. Everything else is out of scope.

What does the SAT test under Expression of Ideas?

The Expression of Ideas domain has one dominant skill type: transitions. The 2025-26 Digital SAT tests four categories of transitions, plus a bonus category, plus one broader effective-writing question type.

1. Support Transitions — Addition, Examples, Clarification, Similarity, or Emphasis
2. Contrast Transitions — direct Contrast or Concession
3. Causal Transitions — does Sentence 1 answer the "why" of Sentence 2?
4. Sequence Transitions — time-ordered or place-ordered relationships
5. Meaning-Bearing Transitions — words like "ironically" or "surprisingly" that carry substantive meaning, not just logical connectors
6. Effective Writing — sentence-level clarity; if you want to define what a quenched galaxy is, the main clause should be "A quenched galaxy is..."

Transition questions are mechanical once you learn the categories. Read both sentences, identify the logical relationship, then pick the transition that names that relationship. The wrong answers always describe a different logical relationship.

What is the biggest takeaway about how the SAT is designed?

Every wrong answer on the SAT is objectively wrong. This is not a test of opinion or interpretation — it is a test of whether you can identify evidence.

Here is the logic: if Student A thinks option A is the main idea and Student B thinks option B is the main idea, College Board cannot adjudicate that. So they design every question so that three options are objectively, demonstrably incorrect. The correct answer is either directly stated in the passage or directly demonstrated by the passage. If you cannot point to the evidence, you are guessing.

How do you find wrong answers on the SAT Reading section?

Every wrong answer on the 2025-26 Digital SAT Reading section falls into one of six categories. Learning these six buckets by name is more useful than general reading comprehension practice.

What are the six wrong-answer types on the SAT Reading section?

The "Reasonable but Unsupported" category is the most dangerous. These answers feel right. They are logical. They might even be true in the real world. But the passage does not support them, so they are wrong. Train yourself to ask: where exactly in the passage does it say this?

Why do negative prefixes trip up SAT test-takers?

The human brain routinely misses negative prefixes and negative words — particularly in a timed, high-stakes setting. College Board knows this. They use it to write distractors.

A passage says: "It was not a pretty house at all." An answer choice says: "The house is beautiful and well-built." Thousands of students mark this as correct because the brain reads "pretty house" and stops. The "not" disappears.

A real example from the College Board question bank

"Any astronomy textbook will tell you that the Moon is Earth's only natural satellite, but it would be more accurate to say that the Moon is Earth's only permanent natural satellite."

The question asks for the function of the underlined portion. Consider two wrong answers:

• Option B — "It describes the consensus view that was overturned by the discovery..."
• Option C — "It emphasizes an exception to imply that objects like the one discussed have been misclassified."

"Overturned" and "misclassified" — both wrong, both invisible to the eye on a first pass. The passage refines a claim. It does not overturn one, and it says nothing about misclassification. One word disqualifies each option.

How was this 2025-26 SAT curriculum breakdown built?

This breakdown is based on a direct analysis of three official College Board sources: the College Board question bank, Bluebook adaptive digital tests with scoring, and Khan Academy SAT questions. We went through thousands of questions across all three sources to map every tested skill to its domain.

This is not what the SAT claims to test. This is what it actually tests, confirmed question by question.

The curriculum has been cross-referenced with hundreds of student prep sessions. Topics that never appeared in official materials are not on this list. Topics on this list have appeared in official materials repeatedly and consistently across the 2025-26 test cycle.