I think I’m going to move my family to either Canada or Finland.
China, Hong Kong, Singapore and Korea score better – but I prefer western comforts.[/quote]
One of the main reasons why countries from the top 10 are in the top 10 is that you can’t just easily pack your things and move there, not without government permission, which may be hard to get. (Or you can, but people tend not to, as with Finland). “South Korea is ethnically one of the most homogeneous societies in the world with more than 99 per cent of inhabitants having Korean ethnicity” (Wikipedia).
If PISA science scores correlate well with NAEP science scores from this file http://nces.ed.gov/programs/coe/2007/pdf/13_2007.pdf, it should be much easier for you to move your family to Montana, North Dakota, New Hampshire, or Vermont, the four highest scoring states in the country, they should score almost as well as Canada and better than South Korea. Interestingly, all four lie on the border with Canada.