There are national tests for 7-, 11- and 14-year-olds in English and mathematics. Pupils aged 11 and 14 are also tested in science. The tests give an independent measure of how pupils and schools are doing compared with the national standards in these subjects.
Most 16-year-old take GCSEs or similar qualifications.
One final point about the persistence of decentralization: there are really three, not one, national curricula. There is one for England and Wales, another for Scotland and another for Northern Ireland. The organization of subjects and the details of the learning objectives vary slightly from to the other. There is even a difference between England and Wales. Only in the latter is the Welsh language part of the curriculum.
The introduction of the national curriculum is also intended to have an influence on the subject-matter of teaching. At the lower primary level, this means a greater emphasis on what are known as 'the three Rs' (Reading, wRiting and aRithmetic). At higher levels, it means a greater emphasis on science and technology. A consequence of the traditional British approach to education had been the habit of giving a relatively large amount of attention to the arts and humanities (which develop the well-rounded human being), and relatively little to science and technology (which develop the ability to do specific jobs). The prevailing belief at the time of writing is that Britain needs more scientists and technicians.