See a LessonLayer lesson in action.

Explore a full lesson on personality testing, made from a real lecture.

Page 3 of 13: switch between three kinds of validity, or compare all three side by side.

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Compare · Explore · Predict · Check · Go deeper

A short example, from a two-page text

A shorter lesson on forgetting and spaced learning: predict which delay leaves the least saved, then step through five delays and watch the savings curve fall and flatten.

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