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The science we build on

Lumen8's design decisions trace back to real learning research — spacing, mastery, scaffolding, adaptivity. These explainers walk through the studies and what they mean in a classroom.

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The Spacing Effect: Why Distributed Practice Transforms Learning

Research shows that spacing out learning sessions dramatically improves retention. How the spacing effect shapes better educational outcomes.

18 November 2025 · 6 min read

Spacing effectLive
Day 1
Day 3
Day 7
Day 14
Day 21
Day 30
Cramming
70%
Daily
90%
Spaced
100%
Optimal spacing = 92% retention at Day 30

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