Retrieval Practice vs Re-reading

Subtitle: Pull it out of your head, do not push it in again

Left column - Re-reading:

Eyes move, memory stays passive Feels productive and comfortable Familiarity mistaken for knowing Highlighting adds no extra recall Fades fast once the page closes

Right column - Retrieval Practice:

Close the book, then write it out Feels effortful and slightly slow Each recall strengthens the trace Errors show what is still missing Holds for weeks, not for hours

Simple difference:

Re-reading = recognising the answer Retrieval = reconstructing the answer

Use it when - Re-reading: first pass on new material; unfamiliar notation; repairing a wrong mental model Use it when - Retrieval: after one clean read; on day 2 and day 7; before any exam or interview

Common beginner mistake:

Re-reading a chapter until it feels easy. Fluency is not memory, so test yourself while recall still feels hard.