Apologies if I'm missing something obvious. My children are much younger at the moment and anyway we haven't got grammar schools in our area. I am just curious - a friend lives in a grammar school area and really hates the ultra competitive tutoring that goes on. I was just wondering why with all the pupil assessment that takes place in primary schools ( and results are published so presumably they are robust) why can these assessments and SATS results not be used to identity the 'top 10%' who would benefit from a grammar school education? Rather than sitting an exam which certain pupils can be hot-housed to sit?