What Is the Science of Learning?

The findings that hold up across settings, and how they apply to a child rather than to a student in a laboratory. Four of them are unusually well replicated.

Spacing

The same total study time produces more durable learning when spread out than when massed together. This is one of the most replicated findings in psychology.

At home: five minutes on something most days beats forty minutes on Sunday. Revisit last week's material briefly rather than only the new thing.

The counterintuitive part is that spacing feels worse while you do it. Massed practice produces a comfortable sense of fluency that does not survive a week.

Retrieval

Being made to recall something strengthens it more than reading it again. Testing is not only measurement; it is one of the better ways to learn.

At home: close the book and ask them to tell you. Ask what they remember from yesterday. "Explain it to me without looking" is retrieval practice and a comprehension check at once.

This also has the reverse implication: re-reading notes, the most common revision method, is among the least effective.

Elaboration

Asking why and how, connecting new material to what is already known, improves retention. Isolated facts are hard to hold; connected ones are not.

At home: why do you think that happens. What does that remind you of. How does that fit with the other thing you told me.

Worked examples

For a beginner, studying a fully worked example is more effective than attempting a problem unaided. Once some competence exists, the balance reverses and problem-solving becomes more useful.

At home: show the whole thing first with a novice, rather than setting them off to discover it. Then withdraw as they gain ground.

This is one place where research disagrees with a common instinct about discovery learning, and the resolution is that it depends on prior knowledge.

Two others worth knowing

Interleaving: mixing problem types rather than doing twenty of the same. Harder, feels worse, produces better transfer.

Desirable difficulty: the general principle behind all of the above. Conditions that make learning feel harder often make it stick better, and conditions that feel fluent often do not.

The important caveat

Most of this comes from laboratory studies, often with older students and simple material. Effects in real classrooms are usually smaller and less reliable.

And none of it substitutes for knowledge. These are techniques for learning things; they do not tell you what is worth learning, and a child with excellent technique and no background knowledge is not well placed.

The single most useful takeaway for a family: ask them to tell you without looking, regularly. It is retrieval, spacing and elaboration in one question.