抄録
In Thailand, the enrollment ratio of lower secondary education increased rapidly between 1990 (39.7%) and 1997 (74.2%). In Bangkok and areas around the city, lower secondary education expanded in the 1980's. Lower secondary education expanded remarkably in rural areas later. Educational opportunity for lower secondary education of rural primary school students had been expanded by implementation of the policy that primary schools under the jurisdiction of the Office of National Primary Education Commission (ONPEC) provide lower secondary education by means of existent resources since 1990. The period of compulsory education was six years at the level of primary education after the National Education Scheme of 1977.
