Primary education, normally starting at age seven, is a four-year foundation stage (Primary 1 to 4) and a two-year orientation stage (Primary 5 to 6). Primary education is compulsory under the Compulsory Education Act since 2003. Exemptions are made for pupils who are homeschooling, attending a full-time religious institution or those with special needs who are unable to attend mainstream schools. However, parents have to meet the requirements set out by the Ministry of Education before these exemptions are granted. Primary education is free for all Singapore citizens in schools under the purview of the Ministry of Education, though there is a fee of up to SGD 13 monthly per student to help cover miscellaneous costs.
The foundation stage is the first stage of formal schooling. The four years, from primary 1 to 4, provide a foundation in English, mother tongue (which includes Standard Mandarin, Malay, Tamil or a Non-Tamil Indian Language (NTIL)), Mathematics and Science. Other subjects include Civics and Moral Education, arts and crafts, music, health education, social studies, and physical education, which are taught throughout Primary 1 to 6. Science is taught from Primary 3 onwards.
All pupils advance to the orientation stage after Primary 4, where they are streamed according to the pupil's ability. The streaming system has been adjusted: previously, pupils were divided at Primary 5 to the EM1, EM2 and EM3 (English and Mother Tongue at 1st, 2nd and 3rd language respectively) streams, but since 2008 they are streamed according to subject under a scheme known as "Subject-based banding". Students take subjects at different levels based on their scores in the respective subjects at the end of Primary 4. The Mother Tongue subjects are offered at the higher, standard or foundation levels; Science and Maths can be taken at the standard or foundation levels.
After six years of Primary education, students will have to sit for the national Primary School Leaving Examination (PSLE). Students will then choose the secondary school of their choice based on their results at this examination; they will then be assigned to a secondary school based on merit and their choice. Students are also admitted into a secondary school under a separate "Direct School Admission" scheme, whereby secondary schools are able to choose a certain number of students based on their special talents before these students take the PSLE. Students admitted under this scheme cannot select their schools based on their PSLE results.