A useful card makes one clear demand.
Start with one decision
Write the front so you can tell whether the response is right. Replace broad prompts such as “Explain photosynthesis” with smaller questions about inputs, outputs, location, or purpose.
Atomic does not mean trivial. One card can still test a relationship or distinction, but it should lead to one assessable response. Split lists when each item deserves an independent memory path.
Keep the answer corrective
Place the shortest correct answer first on the back. Supporting detail should clarify a likely mistake, demonstrate usage, or show why the answer matters—not repeat the entire source.
LoopCard back tabs are useful for dimensions such as meaning, example, distinction, story, and source. The tabs preserve context while letting the learner reveal only the layer needed at that moment.
Edit after a real review
Cards often reveal their defects in use. If two answers seem reasonable, add context to the prompt. If the answer is consistently recalled but a detail is missed, separate that detail into its own card.
Treat a deck as a working memory model rather than a finished document. Removing an ambiguous or low-value card can improve a review loop as much as adding a new one.