SAT — Information and Ideas, harder module: dense passages

The digital SAT is adaptive: in each section, the questions of the second module are harder or easier depending on how a student did on the first. Students aiming for a high Reading and Writing score therefore meet a second module of denser passages, and in the Information and Ideas domain the difference shows less in the question types than in the texts and the answer choices. Passages run toward the upper end of the test's length, pack a concession, a claim and supporting evidence into a few sentences, and come with wrong choices that differ from the answer by a single word or a small overreach.

This material gives twelve such questions on original passages of about 120 to 150 words. The subjects range across the test's fields: fungal networks in forests, the adoption of standard time in the United States, Dutch still-life painting, freeze-tolerant frogs, automatic enrollment in retirement plans, detecting planets around small stars, the ancient obsidian trade, the arrival of electrical recording, memory replay during sleep, spatial memory in chickadees, a city's parking reform and the dating of a medieval manuscript. The scholars and studies named are invented for practice; the background they rest on is accurate.

The set covers every Information and Ideas skill: three questions on the central idea of an argument that concedes one point and disputes another, two detail questions, four inference questions that ask for the logical completion of a final sentence, and three questions on the finding that would most directly support or weaken a hypothesis. The distractors are built the way harder questions build them: a concession turned into a denial, a cautious claim turned into an absolute one, an explanation the passage has already ruled out, and evidence that sounds relevant but bears on something else. Each explanation shows which words decide the question and exactly where each near miss goes wrong.

The flashcards collect the patterns that separate a near miss from the answer: concession signals, overstatement, explanations the writer rules out, controls and comparison groups, and findings that only seem to matter.

Practice material written by Zestly for students preparing for the SAT; it is not produced or endorsed by the College Board.

  • State the central idea of an argument that concedes one point and disputes another
  • Answer detail questions in dense passages by checking choices word by word
  • Complete a passage with the inference that every detail supports, including details that rule out alternatives
  • Identify the finding that would most directly support or weaken a hypothesis
  • Recognize near-miss distractors: overstatement, reversed concessions and irrelevant evidence
  • Use controls and comparison groups to judge causal claims

Practice material written by Zestly, based on the Information and Ideas domain (Central Ideas and Details, Command of Evidence, Inferences) described in the College Board's Assessment Framework for the Digital SAT Suite (version 3.01, August 2024). All passages are original; the researchers and studies named are invented for practice.

Sample question

“Popular accounts often describe forests as cooperative communities in which trees pass sugars to struggling neighbors through underground fungal networks. Ecologist Ines Varga does not dispute that carbon moves between trees through such networks; experiments that label carbon with isotopes have tracked it doing so. What she questions is the interpretation. The fungi, she notes, are not neutral pipes: they draw carbon from their hosts for their own growth, so whatever reaches a neighboring tree may be a by-product of the fungus's own needs rather than a gift from the donor. Moreover, most field studies have found the amounts transferred to be small compared with what a tree produces by photosynthesis. Before calling the transfer sharing, Varga argues, researchers must show that it benefits the receiving tree enough to matter and that it responds to the donor's circumstances rather than to the fungus's.” Which choice best states the main idea?

See the answer

Varga accepts that carbon passes between trees through fungal networks but argues that the evidence does not yet justify describing the transfer as trees sharing with one another.

Varga accepts the transfer (“does not dispute that carbon moves”) and questions only the interpretation: the fungus may be moving the carbon for its own reasons, and the amounts are usually small, so “sharing” needs further proof. The choice about isotope experiments contradicts her acceptance of them. The choice saying the amounts are too small to matter overstates her point: she says they are small and that researchers must show they matter, not that they cannot. Nothing in her argument says the fungi harm forests.

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