The Pisa tests have become a key part of an increasingly global perspective on education standards.
The PISA assessments of 15-year-olds show Wales falling further behind since the 2006 tests.
Chinese students from Shanghai and 11 other regions did very well in the 2009 PISA TEST.
There have been voices sceptical about the value of Pisa test comparisons and how they are used.
On the highway to Pisa, I wondered how much longer Chinese tours at this pace might endure.
Regular keeper Maik Taylor is one of many absentees from Nigel Worthington's squad for the Pisa friendly.
The first PISA study, in 2000, placed German pupils well below the OECD average for reading and literacy.
The last Pisa study appeared to show England's performance had worsened, the study said, while Timms suggested the opposite.
The PISA study, a test of 15-year-olds, places Panama 63rd out of 65 economies, behind the likes of Albania.
Some in the town had suggested it could be twinned with Pisa in Italy, council leader George Dunning said.
Another trophy home on the market is Villa Reale, just outside Pisa.
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The PISA assessments of 15-year-olds educational attainment, published in December 2010, showed Wales falling further behind since the 2006 tests.
The OECD Programme for International Student Assessment or Pisa tests examines the performance of 15-year-old pupils in mathematics, science, and reading.
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In Britain, which has slipped down the PISA rankings in the past few years, examples like these are being studied closely.
The poor performance of Welsh students in the Programme for International Student Assessment (PISA) results formed the backdrop for the debate.
We were about to reboard the bus for another ninety minutes, to snatch a photo of the Leaning Tower of Pisa.
The 2009 Programme for International Student Assessment (PISA) tests showed that overall English pupils came 28th for maths out of 65 countries.
The reading abilities of German 15-year-olds, according to the PISA studies published by the OECD, are below the average for rich countries.
The OECD's PISA researchers conclude that the choices have little to do with ability and may well be influenced by ingrained stereotypes.
The government says that the Pisa findings show that England is one of the countries with the largest numbers of high-achieving students.
Mr Schleicher acknowledges that the hopeful, or simply naive, sometimes rifle through the PISA studies for shiny new education initiatives to pilfer.
These will be joined by Virgo, a collaboration between Italian and French researchers with three-kilometre arms, which is being built near Pisa.
He noticed that the branches and leaves followed the 1-2-3-5-8-13-et cetera growth series discovered centuries ago by Italian mathematician Leonardo of Pisa.
The Pisa survey is based on tests carried out in 2006 in 57 countries which together account for 90% of the world's economy.
It is interesting to note that the highest scoring countries, Finland and Korea, are also among the highest achieving systems in PISA 2009.
Scotland awaits publication in late 2013 of the Program for International Student Assessment (PISA) run by the Organisation for Economic Co-operation and Development.
The area is near the sea, skiing in the mountains, has medieval villages and is less than an hour from the airport in Pisa.
In February, a group led by Dario Valenzano of the Scuola Normale Superiore in Pisa, Italy, showed that the effect applies in vertebrates, too.
Tuscany is situated north of Rome, stretching up to Pisa along the western part of Italy, and includes historic cities like Siena and Florence.
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The Pisa tests, which measure the performance of 15-year-olds in maths, reading and science, have become a highly influential way of comparing international education standards.
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