Primary school lasts 5 years in the European School system. Classes 1-5 of the primary school can be compared to groups 3-7 in the Dutch education system and with classes 1-5 in Flanders. The curriculum that is offered at the European School the Hague, is similar to that of the other European schools. However, because of the fact that this European School must not only meet the European criteria, but must also respect Dutch Law, some additions and amendments are necessary, making sure that the core objectives of primary education can be achieved, such as laid down in Dutch law. The curricula are also supplemented and amended from time to time, if education practice in the European Schools has shown that these additions or changes are necessary.