Mastery

Return to questions after a gap

Whenyou open your learning material

Before new material, answer three earlier questions without looking. Check and correct each answer. Return tomorrow, later in the week and before you need the knowledge; bring missed items back sooner and widen gaps for reliable ones.

Start tiny

Answer and check one earlier question.

When it slips

After a missed return, make one checked attempt now; resume with a workable gap.

Evidence grade AMeta-analysis, evidence-based guideline, or repeated findings

Mawson & Kang (2025), The Distributed Practice Effect on Classroom Learning, Behavioral Sciences 15, 771. Read the source ↗ Agarwal et al. (2021). Read the source ↗ Spacing and retrieval support retention; the suggested gaps are a starting schedule, not an optimum. Canonical registration of the practice in standalone BM-M04.

Mastery: Inspect your work, apply a specific correction in later practice and check whether it helped.

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Keep your practice in sight.

Library cards are free to read and print. Choose the ones you’ll use, put them where their cues happen, and keep returning to the practice. Our boxed collections are separate printed editions.