Originally Posted by ColinsMum
Apologies if this news article or the study it's based on have already been discussed here, but this is interesting in that context, though based on Pisa not TIMSS:
http://www.bbc.co.uk/news/business-27442541
2 threads on this article.
http://giftedissues.davidsongifted....eaching_to_the_choir_but.html#Post192082
http://giftedissues.davidsongifted....sting_article_about_US_m.html#Post192480