Why Bright Children Freeze in Exams - and How to Help Them Thaw

Your child knew the work. You watched them sail through practice papers at home. Then they walked out of the real test flat, and the result made no sense. If that gut-punch feels familiar, you are not alone - and according to cognitive scientist Sian Beilock, it usually has nothing to do with ability and everything to do with pressure.

This is the first article in our series on the body-mind link in exam preparation (start with the overview: how movement shapes your child's mind). Here we look at one of the most frustrating problems parents face during NSW Selective Test preparation: the capable child who freezes when it counts.

Why knowing the material isn't enough

When a child feels threatened - by a ticking clock, an unfamiliar room, or the fear of letting you down - the brain can shift into "fight, flight or freeze" mode. Heart rate climbs, breathing shortens, and attention narrows. In that state, the brain's working memory, the mental workspace your child needs to hold and juggle information, gets crowded out by worry.

Beilock has spent her career studying exactly this - what she calls "choking under pressure." Her key insight, drawn together in her book How the Body Knows Its Mind, is that anxiety physically competes for the same mental resources a hard question demands. The knowledge is still there; the child just cannot reach it under load.

The ten-minute fix backed by research

Here is the encouraging part. In a well-known study Beilock co-authored, published in the journal Science, students who spent about ten minutes writing down their worries immediately before an exam scored measurably higher - and the most anxious students improved the most. Naming the worry and getting it onto paper seems to clear mental space, so working memory is freed up for the test itself.

You can borrow this directly. Before a practice paper or the real thing, give your child a blank page and a few quiet minutes to write whatever they are worried about. No one needs to read it. It feels almost too simple - but the evidence says it works.

Three more ways to help your child thaw

1. Practise under realistic conditions

Freezing thrives on novelty. The more closely practice mirrors test day - timed, on a screen, in one sitting - the less threatening the real exam feels. This is why working through full, exam-style papers, like those in our Selective Test practice set, does more than build knowledge: it builds familiarity, which is the enemy of panic.

2. Reframe nerves as readiness

A racing heart is not always a bad sign - it is the body getting ready to perform. Teaching your child to read those feelings as "I'm switched on" rather than "I'm in trouble" can change how the same sensations affect them.

3. Take the focus off the score

Children who fixate on the mark feel more threatened than those focused on effort and process. We explore this in depth in why focusing on effort, not the score, leads to better results, and in our guide to helping your child stop overthinking.

Freezing is not a sign your child isn't ready. It is a sign their nervous system needs a little support - and, as Beilock's work shows, that support is simple, physical and very teachable. Next in this series, we look at why movement breaks make study more effective, not less.