How to Tell If Your Child Is Actually Learning Something

Grades are a signal. The problem with signals is that they measure what they are designed to measure, and what most examinations are designed to measure is a specific and narrow version of learning, the ability to retrieve stored information under timed conditions and produce it in the expected format. This is not nothing. The child who can do this consistently across multiple subjects over multiple years has developed real discipline and organisation. The problem is that grades do not tell you whether the knowledge behind them has been understood or merely memorised, and the difference between those two things determines almost everything about what the child can do with what they have learned.

There is a test that costs nothing, takes about five minutes, and tells you more about the quality of your child's learning than any report card. It requires only a willingness to ask questions whose answers you do not already know, and to listen carefully to what the responses reveal.

Ask your child to explain something they have recently studied, not to tell you what they learned about it, which invites retrieval, but to explain it to you as though you have never encountered it before. Ask them to use their own words rather than the words of the textbook. Ask them to tell you why it matters, not in the sense of why the examiner thinks it matters, but why it actually matters in the world. Ask them to give you an example that is not the one they were taught with. And ask them what it connects to, what else they know that it reminds them of or relates to.

The child who has genuinely understood something will find a way through those questions. They will use their own language, make their own connections, perhaps get something slightly wrong and correct it as they go. The explanation will feel like thinking rather than recitation. There will be moments of genuine engagement, of working something out rather than playing it back.

The child who has learned to the exam will produce the learned phrases for as long as they hold. The textbook language will come out largely intact. When it runs out, when the questions push past what was explicitly taught, the explanation will stall. Not because the child is unintelligent or has not tried. Because the conditions that built the knowledge were not the conditions that produce understanding. They were the conditions that produce accurate, temporary storage.

This test, which Richard Feynman applied to his own understanding throughout his career and recommended to anyone who claimed to know something, is not a performance measure. It is a diagnostic tool. It tells you not how much your child knows but what kind of knowing they have built, and that distinction is what determines whether the knowledge will still be useful in five years or whether it will have evaporated the week after the exam.

What do you do with the information if the answer is not encouraging? The short answer is that you change the standard you hold at home, without dismantling anything the school is doing. You begin asking your child to explain rather than report. You begin holding the Feynman standard in conversation, not as a test but as the normal expectation of what it means to know something. You signal, consistently and without drama, that the right answer on the exam is not the goal. Understanding the thing behind the right answer is.

This shift takes time to produce results. It is also, in the long run, one of the most significant things a parent can do for a child's intellectual development, because it changes what the child believes learning is for. The child who grows up in an environment where understanding is the standard, rather than performance, builds a different relationship with knowledge than the child who grows up optimising for grades. They are slower to claim they know things. They are more willing to say they do not understand something and to work at it until they do. They develop the intellectual honesty to distinguish between what they genuinely understand and what they can merely reproduce, which is amongst the most practically useful capacities an educated person can have.

The grade will follow or it will not. The understanding will outlast both.