Survey shows size no barrier to good grades.
Primary schools have disclosed controversial data about pupil achievement, with the surprise revelation that children in bigger classes and bigger schools get better grades.
The Herald on Sunday has conducted a comprehensive survey of schools' national standards results, before the Ministry of Education publishes them this week.
At schools with fewer pupils for each teacher, around 70 per cent of children are achieving national standards in reading, writing and arithmetic. But at schools with more pupils for each teacher - in effect, bigger classes - the pass rates rise to about 80 per cent.
So too with school rolls: the highest proportions of children achieving or exceeding national standards are at big schools.