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The Testing Effect: Active Recall vs. Re-reading

Interactive study-skills simulator: two matched groups of memory items are reviewed on the same schedule, one by passive re-reading and one by active-recall testing. Watch a live 3D forgetting-curve model show why retrieval practice beats re-reading for long-term retention.

Education & Learning Tools2DModerate60 FPS📱 Mobile-adapted

Two identical sets of study material are reviewed on the same fixed schedule — one group by passively re-reading, the other by actively testing itself first — and this simulator models exactly how their memory strength and retention diverge over simulated weeks. Each item follows an Ebbinghaus-style exponential forgetting curve, and every review event feeds back into that item's memory strength according to which study method produced it. The result reproduces one of the most robust findings in learning science: retrieval practice (self-testing, flashcards, closed-book recall) builds durable memory far more effectively than passive re-reading, even when both methods get identical study time and identical scheduling. Adjust the review interval and playback speed, watch the two floating fact-clusters glow and fade in real time, and read the diverging retention curves that explain why "test yourself" is the single best piece of study-skills advice backed by research.

⚙ Under the hood

This simulation focuses on demonstrating effective study techniques. It allows users to practice methods like note-taking, summarizing, and active recall to improve their learning efficiency.

Study Skills

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install