APMF, the OECD, who I'm sure you can't claim to be a questionable expert since they administer the very international comparisons you refer to APFM, point out that the UK's standing in those international tables is not accurate as there are not enough UK schools who take the PISA tests to give a reliable sample. In Canada, for example, all schools enter. In addition, the PISA tests shift focus every time they are done (in a four year cycle) - so the last one had a focus on reading comprehension, the one before on Maths, so comparing fromtesting point to testing point is not really reliable either. Shanghai sits at the very top. To live and work in Shanghai, you have to have a permit - the population is comparatively affluent. When we compare ourselves to 'China', we are really comparing ourselves to Shanghai. It's a bit like us submitting data only from Surrey. This is the internationally flawed data that finds its way into our media.
Second in the international lists is Finland. In Finland teachers are very highly respected. Teachers assess all pupils work and they are trusted to mark it accurately. Here and in Sweden, it is the teachers who pass on information to the Universities about thier pupil's progress. It is considered to be more prestigious, and it is certainly more difficult in Finland, to get a place on a teacher training course than it is to get a place a medical course. The Finnish government leave the profession free to manage its own affairs. Children don't start school until they are 7. By the time they are 8 they are generally outperforming pupils in the UK who started school at 5. This is considered by various international studies to be down to the ore- school system, which is free to all parents from the age of 2. There is no formal teaching at pre-school, but a huge emphasis on developing spoken language, imagination and social responsibility - the building blocks of intelligence. In the UK, we leave these important building blocks to parents and off a patchy access to high quality per- school education. Now we see the huge discrepancies in our system. For example..
Picture a supermarket.
Mother One : Look at these beans, one is 80 pence, one is 70 pence, which one is more expensive....
Mother Two : Do you want a smack?
Those differences are largely eliminated in the Scandinavian system.
I could go on and on, but my point is that simplistic data is just that - simplistic. If we want to improve education, we have to embrace ideas that might seem alien to us. We have to stop seeing the world and the ideas in it as 'left' or 'right' wing. We need to stop putting people off joining the teaching profession and to give the ones who are already in it reason to stop leaving ( a staggering 50% of new teachers leave the profession within 5 years - a national scandal).