Actively recalling facts or procedures from memory (self-quizzing, flashcards, explaining without notes) instead of only re-reading. It is one of the strongest evidence-based learning strategies.
Retrieval practice means testing yourself: answering questions, writing summaries from memory, or working problems before peeking at solutions.
Research consistently shows that retrieval beats passive review for durable learning. Combine it with spaced repetition for efficient schedules.