linguistic:voice_change, structural:expansion, information:classification
Education

The educational system is divided into preschool (for those under age six), basic education (nine years, in three stages, compulsory), secondary education (three years, compulsory since 2010), and higher education (subdivided in university and polytechnic education). Universities are usually organized into faculties. Institutes and schools are also common designations for autonomous subdivisions of Portuguese higher education institutions.

The total adult literacy rate in Portugal was 99.8% in 2021. According to the Programme for International Student Assessment (PISA) 2018, Portugal scored around the OECD average in reading, mathematics and science. In reading and mathematics, mean performance in 2018 was close to the level observed in 2009 to 2015; in science, mean performance in 2018 was below that of 2015, and returned close to the level observed in 2009 and 2012, near below average.

About 47.6% of college-age citizens (20 years old) attend one of Portugal's higher education institutions (compared with 50% in the United States and 35% in the OECD on average). In addition to being a destination for international students, Portugal is also among the top places of origin for international students. All higher education students, both domestic and international, totalled 380,937 in 2005.

Portuguese universities have existed since 1290. The oldest Portuguese university was first established in Lisbon before moving to Coimbra. Historically, within the scope of the Portuguese Empire, the Portuguese founded the oldest engineering school of the Americas (the Real Academia de Artilharia, Fortificação e Desenho of Rio de Janeiro) in 1792, as well as the oldest medical college in Asia (the Escola Médico-Cirúrgica of Goa) in 1842. Presently, the largest university in Portugal is the University of Lisbon.

The Bologna process has been adopted by Portuguese universities and poly-technical institutes in 2006. Higher education in state-run educational establishments is provided on a competitive basis, a system of numerus clausus is enforced through a national database on student admissions. However, every higher education institution offers also a number of additional vacant places through other extraordinary admission processes for sportsmen, mature applicants (over 23 years old), international students, foreign students from the Lusosphere, degree owners from other institutions, students from other institutions (academic transfer), former students (readmission), and course change, which are subject to specific standards and regulations set by each institution or course department.

Most student costs are supported with public money. Portugal has entered into cooperation agreements with the Massachusetts Institute of Technology and other US institutions to further develop and increase the effectiveness of Portuguese higher education and research.