Independent education consultant Terry Mackie argues that the key theme from today's report from the OECD, and what should now become a focus for the Welsh Government, is the need to improve how schools support low-achieving pupils.
"It is beyond dispute that Wales has not met the diverse learning needs of all students," he said.
Mr Mackie describes the problem as "fixable", and says there needs to be "differentiating" teaching for individual pupils, intervening where they need extra support.
More top news
A 'Festival of Autism has been held in Swansea to raise awareness and help people understand the condition.
There will be some patchy cloud, especially in the west later, and the chance of an odd shower, but in the sunshine it will feel pleasant.
A runner who carried a fellow athlete over the London Marathon finishing line claimed helping was "more important" to him than his time.