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Curriculum

PrimePrep covers every section of the Digital SAT — vocabulary, grammar, reading, and math — with a K–12 math fluency module on the roadmap. Here's what your student learns in each.

SAT Vocabulary

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A curated bank of 1,000+ high-frequency SAT words, organized across three difficulty tiers — common, intermediate, and advanced. Every word includes a definition, example sentence, word root, etymology, and related words that share the same root.

How it works

Every card opens with a question: pick the correct meaning from four choices before the answer is shown — active recall, not passive recognition. Wrong picks and hint use send the card back into the session; you move on only when you know the word. A spaced repetition engine schedules the next review at intervals tuned to how well you know each word: words you miss resurface quickly, words you know well drift further out. Quiz mode tests typed recall on top, and progress tracking surfaces streak, accuracy, and mastered word count.

Why roots and etymology? SAT vocabulary is not a memorization test — it's a test of whether you can decode unfamiliar words in context. Learning a single Latin or Greek root often unlocks a dozen related words at once.

SAT Grammar

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Full coverage of the grammar and usage skills tested on the Digital SAT's Reading & Writing section. Students learn the underlying rule, see worked examples, and then practice on SAT-format questions with explanations after every answer.

Topics covered
Punctuation boundariesComma splices & run-onsSubject-verb agreementVerb tense consistencyTransitionsConcisenessPronoun agreement & clarityPossessives vs. contractionsParallel structureModifier placementCollective nounsPast perfect vs. simple pastColon & dash usageLogical comparisonsCommonly confused words
How it works

Each rule has a short explanation with examples, followed by a dedicated practice drill. Every practice question shows an inline explanation after the student answers — including why the wrong choices are wrong, not just which one is right.

SAT Reading

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Reading comprehension built around the skills the Digital SAT actually tests — finding evidence, inferring author intent, evaluating arguments, and distinguishing literal content from rhetorical purpose. Every passage is paired with questions that reward close reading over guessing.

Content mix

The passage bank spans four domains: literature, history and social science, natural science, and humanities. Students encounter classic literature alongside contemporary non-fiction on topics like mycelium networks, octopus color vision, and the tragedy of the commons.

A strategy-first approach

Rather than teach reading comprehension as a single opaque skill, the module breaks it into eight specific strategies — each with its own practice bank. Students learn when to locate textual evidence, when to paraphrase before answering, when to eliminate absolute language, and when to ground a choice in the passage rather than outside knowledge.

Every question gets two explanations. One shows how to solve it without the strategy; one shows how the strategy changes the approach. Students see the gain directly.

SAT Math

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Every domain tested on the Digital SAT, with both multiple-choice and student-produced response (grid-in) formats. Students get step-by-step worked solutions for every question and can filter practice by domain or by strategy.

The four domains
AlgebraAdvanced MathProblem-Solving & Data AnalysisGeometry & Trigonometry

Algebra covers linear equations, systems, functions, and inequalities. Advanced Math handles quadratics, polynomials, exponentials, and radicals. Data Analysis covers ratios, percentages, statistics, and probability. Geometry & Trig covers area, volume, angles, circles, and trig fundamentals.

A Desmos-powered strategy system

The Digital SAT includes a built-in Desmos graphing calculator — and most students never learn to use it efficiently. PrimePrep teaches 12 specific Desmos strategies (intersection method, regression, sliders, plug-in, and nine more) with a dedicated card for each. Every strategy shows when to use it, what to type, and how much time it saves.

Strategies save 15 to 90 seconds per question. Across a 70-minute math section, that compounds into real time for harder problems — or real margin on the easier ones.
Every answer is machine-verified

Math questions are dual-verified: each answer is checked by an algebraic verifier and a numerical verifier before it ships. Students practice against a curated bank with structured “Without Desmos / With Desmos” explanations — two numbered paths through every problem.

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