Most revision advice is folklore. Some of the most confidently repeated study techniques have been tested and found to do almost nothing, while two of the best-supported ones are barely taught at all. This is what the learning research actually supports, what it does not, and where the games on this site genuinely fit — which is narrower than you might hope, and useful in a specific way.
Retrieval practice
Testing yourself on material strengthens retention more than studying it again does. This is the testing effect, and it is among the most reliably reproduced findings in learning research. It works even when the test is hard and you get answers wrong — the effort of retrieving is what does the work.
In practice: close the book and write down what you remember, then check. That feels worse than re-reading and it is substantially more effective. Re-reading feels productive precisely because it is easy, which is the trap.
Spaced repetition
The same total study time spread across several days produces far more durable learning than the same time in one block. The effect is large, it has been known for over a century, and it is the reason cramming produces a pass and no retention.
The Vocabulary Builder here implements both: you are tested rather than shown, and items you get wrong come back sooner.
Learning styles. The idea that people learn better when material matches their 'visual' or 'auditory' style is one of the most thoroughly tested claims in education, and the studies designed properly to test it have consistently not found the effect. It remains almost universally believed.
Highlighting and re-reading. Both rate poorly in reviews of study techniques. They feel productive and produce very little, largely because they are passive.
Cramming. It works for tomorrow's exam and not for the one after. If you need the material again, it is close to wasted time.
Background music with lyrics while reading. It competes with the verbal processing you are using to read, and the effect is measurable.
Not as a substitute for studying. Nobody has shown that playing memory games improves exam results, and anybody claiming otherwise is overselling.
Three honest uses:
As a start ritual. The hardest part of a study session is starting it, and a two-minute game with a clear end point is an easier start than the subject itself. Math Drills runs thirty seconds.
As arithmetic fluency. This one does transfer, because it is the same skill. If 7×8 arrives rather than being computed, the attention you would have spent computing it is free for the problem. Times Tables Sprint and Arithmetic 60s are the drills that matter.
As technique practice. The Memory Palace Builder and the Number Chunking Tool teach mnemonic methods that apply directly to material you actually need to learn. The method of loci is the oldest documented memory technique there is and it works for ordered lists.
Spread it. Four thirty-minute sessions across four days beats one two-hour session, for the same total time.
Close the book. Every session, write down what you remember before you check anything. That is the retrieval step and it is where the learning happens.
Revisit what you got wrong sooner. That is spaced repetition, and it is the whole mechanism behind flashcard systems.
Sleep between sessions. Consolidation happens during sleep, and a session followed by a bad night is partly wasted.
Put the phone in another room. Interruption costs are among the better-documented findings here, and proximity alone costs attention.
The Streak Planner will print a week with rest days built in, and the 3-minute daily practice covers building the habit itself.
There is no good evidence that they do. Arithmetic fluency transfers because it is the same skill; general memory and attention training has not been shown to improve academic outcomes.
Retrieval practice — closing the book and writing down what you remember — combined with spacing the sessions across days. Both are among the best-supported findings in learning research and both feel harder than re-reading, which is why people avoid them.
The claim that matching teaching to a preferred style improves learning has been tested repeatedly and the properly designed studies have consistently not found the effect, despite how widely it is believed.
It rates poorly in reviews of study techniques. It feels productive because it is passive and easy, which is precisely the problem.
Long enough to get into the material and short enough that you keep the habit. Four thirty-minute sessions across four days beats one two-hour block of the same total time.
Test yourself instead of re-reading, spread the sessions across days, sleep between them, and put the phone somewhere else. Use the games to start and to build arithmetic fluency — not as a substitute for the studying. [Plan the week](/tools/streak-planner).