THE RESOURCE LIBRARY

PSAT/NMSQT Math: Study Resources & Illustrated Guides

Illustrated teaching guides, official reference links, and a transparent source record.

$Original diagram: Count the right group before calculating chance.$ VIDEO → ARTICLE

mathantics · 9 min read

Count the right group before calculating chance.

Events, complements, conditions and the meaning of a prediction.

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$Original diagram: What does the quadratic question actually ask?$ VIDEO → ARTICLE

The Organic Chemistry Tutor · 10 min read

What does the quadratic question actually ask?

Separate roots, distance, dimensions and the minimum.

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$Original diagram: Compare spread without losing the center.$ VIDEO → ARTICLE

Khan Academy · 10 min read

Compare spread without losing the center.

A dot plot can reveal what an average and a range conceal.

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$Original diagram: Repeat the right factor over the right interval.$ VIDEO → ARTICLE

Khan Academy · 10 min read

Repeat the right factor over the right interval.

Build, compare and reverse exponential models.

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These guides use actual video captions for a short source synopsis and timestamp map. Teaching text, worked examples, and diagrams are original companions. They do not reproduce full transcripts or downloaded video.

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Choose a guide by the skill you want to understand. Original explanations and video companions are identified separately, with sources and links back to lessons and practice.

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Scope: Digital PSAT/NMSQT Math foundations