Your child remembers schoolwork best by practising it in short sessions across several days, rather than learning everything at once. As The Learning Scientists put it, "it is better to spread practice out over time, rather than massing (cramming)," and the same total study time, spread out, gives better and longer-lasting results. This approach is called spaced practice, and it's one of the best-supported learning strategies.
Many children only study the night before a test, and forget the material soon after. With a little spacing it sticks much longer, often with less effort. In this article you'll read how it works and how to apply it at home.
Why spacing beats cramming
Spreading study out doesn't cost more total time; it just works better. The Learning Scientists give an example: 12 hours spread over four weeks outperforms the same 12 hours crammed into two days, and the spaced learning lasts longer.
Part of the reason is working memory. With massed practice, "working memory resources may end up depleting, which could result in less learning." When sessions are spaced, those resources "are more likely to be fresh and ready to go." On top of that, when material has faded a little between sessions, recalling it takes more effort, and that effort is what strengthens the memory.
So one long study session works less well than several short ones spread over time. With spacing there's always enough "forgetting" in between to make the recall worthwhile.
Recalling beats rereading
A common mistake is simply rereading the material. It feels like learning, but the brain does little work and remembers little. Far more powerful is active processing: trying to pull the material out of memory.
Research backs this up. A study of elementary-school children found "robust positive effects of retrieval practice": children "recalled and recognized more words on the final test when they practiced retrieving the words," compared with items they only reread. The Learning Scientists call applying spacing to retrieval "better yet" than rereading. So have your child practise actively instead of reading passively:
- Quizzing: ask questions about the material, or have your child test themselves.
- Retelling: have your child explain what they learned without looking at the book.
- A short quiz: a few questions on a slip of paper, or a mini-test with a sibling.
Only when your child can't recall the answer do they look back at the material. That small struggle is exactly where the learning happens.
A simple review plan
You don't need a complicated system. A good formula is three review moments with growing gaps between them. For a test next week, you could space the sessions like this:
| Moment | When | What |
|---|---|---|
| 1 | The day after the lesson | Briefly go over the new material |
| 2 | About 3 days later | Recall it from memory, without rereading first |
| 3 | About 6 days later | A final check just before the test |
The key is the growing gap. The longer your child remembers something, the longer you can delay the next review. Adjust the rhythm to the material and to your child; the schedule is a guide, not a law.
What it works best for
Spaced practice is ideal for basic knowledge you need by heart: definitions, times tables, formulas and vocabulary. That kind of knowledge needs to be quick and automatic, and short, regular review does exactly that.
For times tables and vocabulary it works especially well, because you can practise them in a few minutes. A fixed small moment each day does more than a long catch-up session.
Combine with older material
Spaced practice works even better if you mix new and older material in the same session. Instead of only practising the latest chapter, slip in an older exercise now and then. That keeps earlier material alive and teaches your child to switch between topics.
A handy habit is not to do homework right after the lesson, but a few days later. The material has already faded a little, so recalling it pays off more. Your child then practises in a spaced way automatically, at no extra time cost.
Common pitfalls
A few things undo the effect of spaced practice:
- Leaving everything to the night before the test. Then there's no room left to space.
- Only rereading. It feels productive, but without active recall little sticks.
- Blocks that are too long. After a while attention drops; short and frequent works better. More on that in homework concentration and the smartphone.
Teach your child to plan
Spaced practice needs a bit of looking ahead, and that's a valuable skill in itself. Help your child put tests and tasks in the diary in advance and plan review moments around them. Studying then becomes a routine instead of a panic race.
A simple rule of thumb sums it up: better three short practice moments across the week than one long cramming evening before a test. The earlier your child starts, the more they gain from the spacing. Guide them at first; after a while it comes on its own. More on supporting without giving answers in help with homework without giving the answer.
Keep it light and low-pressure
Short review sessions only stay a habit if they're pleasant. Keep them brief, turn the quizzing into a small game, and stop on a good note. A child who practises with a bit of fun keeps it up far longer than one who dreads a long, heavy session.
Praise effort and progress rather than only a flawless score, and don't compare your child with siblings or classmates. Remember too that a little forgetting between sessions is not failure but part of how memory gets stronger. When your child struggles to recall something and then gets there, that moment of effort is precisely the learning. Framing it that way takes the pressure off and keeps your child willing to try again tomorrow.
Frequently asked questions
What is spaced practice?
It means practising the material in short sessions across several days, instead of all at once. As The Learning Scientists put it, 'it is better to spread practice out over time, rather than massing (cramming).' The same total time, spaced, gives better and longer-lasting results.
Why does recalling beat rereading?
Because you learn by bringing information to mind, not by looking at it again. Research shows 'robust positive effects of retrieval practice with elementary school children': they remembered more when they practised retrieving than when they only reread.
How do I plan review for a test next week?
Spread the sessions with growing gaps, for example after about 1, 3 and 6 days. Three short moments across the week work better than one long evening of cramming right before the test.
What does spaced practice work best for?
Especially for basic knowledge you need by heart: definitions, times tables, formulas and vocabulary. Short, regular review keeps them available far better than a single cram session.
How Atlas helps
The tricky part of spaced practice is choosing the right moment: just when the material starts to fade. That's exactly where Atlas steps in. When a topic your child already passed in Atlas starts to fade, based on a memory model, Atlas automatically adds a short review, earlier for subjects with a test coming up. So your child doesn't have to keep track of what needs reviewing and when. Atlas also checks, with an unannounced test, whether topics learned earlier are still known. That way the material is refreshed at the ideal moment, without you having to police the schedule.
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