Retrieval practice
EducationalAlso called active recall or practice testing. The underlying finding — that retrieving a memory strengthens it — is known as the testing effect.
Retrieval practice is the technique of learning by recalling information from memory rather than re-exposing yourself to it. In practice it means flashcards, past-paper questions, or closing the book and writing what you remember before checking — anything that makes you generate the answer instead of reviewing it.
The reason it works is the testing effect: successfully retrieving a memory makes it easier to retrieve again later. It is one of the most replicated findings in learning science (Roediger & Karpicke, 2006), and a major review of study techniques rated it among the highest-utility strategies available to students (Dunlosky et al., 2013). It pairs naturally with spaced practice — retrieve, leave a gap, retrieve again — the two together outperforming either alone. The effort of struggling to recall something and then getting it is not a sign of falling behind; that difficulty is a large part of where the learning comes from.
On Ewance
Retrieval is the quiet engine under Ewance's model. Solving a real challenge forces you to pull knowledge out of your head and apply it to an open-ended problem — retrieval, spacing, and application rolled into one — which is why applied work sticks in a way re-reading a module never does. The credential then records not what you reviewed, but what you could actually retrieve and use.
Decide by doing.
The fastest way to know whether challenge-based learning fits you is to ship one.