Secondary school in the context of "Euclidean geometry"

The National Day Parade (NDP) is an annual parade held in Singapore to commemorate its independence. Held annually on 9 August, it is the main public celebration of National Day, and consists of a parade incorporating contingents of the Singapore Armed Forces, Singapore Police Force, Singapore Civil Defence Force, primary and secondary school uniformed groups and other community groups, followed by a cultural presentation featuring music, songs, dance displays, and a fireworks show.

First held on 9 August 1966 to mark the one-year anniversary of Singapore's declaration of independence from Malaysia, it has been celebrated annually ever since. The parade had historically been held at the Padang, but were occasionally held at the former National Stadium, and in a "decentralised" format across the country to encourage wider public participation. Beginning in 1984, the Padang began to host the parade on a regular cycle (initially once every three years, and then every five years beginning 1995) and during all years marking anniversaries of national significance, with the event otherwise hosted by the National Stadium.

A school is the educational institution (and, in the case of in-person learning, the building) designed to provide learning environments for the teaching of students, usually under the direction of teachers. Most countries have systems of formal education, which is sometimes compulsory. In these systems, students progress through a series of schools that can be built and operated by both government and private organization. The names for these schools vary by country (discussed in the Regional terms section below) but generally include primary school for young children and secondary school for teenagers who have completed primary education. An institution where higher education is taught is commonly called a university college or university.

In addition to these core schools, students in a given country may also attend schools before and after primary (elementary in the U.S.) and secondary (middle school in the U.S.) education. Kindergarten or preschool provide some schooling to very young children (typically ages 3–5). University, vocational school, college, or seminary may be available after secondary school. A school may be dedicated to one particular field, such as a school of economics or dance. Alternative schools may provide nontraditional curriculum and methods.

A college (Latin: collegium) may be a tertiary educational institution (sometimes awarding degrees), part of a collegiate university, an institution offering vocational education, a further education institution, or a secondary school.

In most of the world, a college may be a high school or secondary school, a college of further education, a training institution that awards trade qualifications, a higher-education provider that does not have university status (often without its own degree-awarding powers), or a constituent part of a university. In the United States, a college may offer undergraduate programs – either as an independent institution or as the undergraduate program of a university – or it may be a residential college of a university or a community college, referring to (primarily public) higher education institutions that aim to provide affordable and accessible education, usually limited to two-year associate degrees. The word "college" is generally also used as a synonym for a university in the US, and as used in phrases such as "college students" and "going to college" it is understood to mean any degree granting institution, whether denominated a school, an institute, a college, or a university.

A schoolmaster, or simply master, is a male school teacher. The usage first occurred in England in the Late Middle Ages and early modern period. At that time, most schools were one-room or two-room schools and had only one or two such teachers, a second or third being often called an assistant schoolmaster. The use of the traditional term survives in British private schools, both secondary and preparatory, and in grammar schools, as well as in some Commonwealth boarding schools (such as the Doon School in India) which are modelled on British grammar and public schools.

A primary school (in Ireland, India, the United Kingdom, Australia, New Zealand, Trinidad and Tobago, Jamaica, South Africa, and Singapore), elementary school, or grade school (in North America and the Philippines) is a school for primary education of children who are 4 to 10 years of age (and in many cases, 11 years of age). Primary schooling follows preschool and precedes secondary schooling.

The International Standard Classification of Education considers primary education as a single phase where programmes are typically designed to provide fundamental skills in reading, writing, and mathematics and to establish a solid foundation for learning. This is ISCED Level 1: Primary education or first stage of basic education.

Further education (often abbreviated FE) in the United Kingdom and Ireland is additional education to that received at secondary school that is distinct from the higher education (HE) offered in universities and other academic institutions. It may be at any level in compulsory secondary education, from entry to higher level qualifications such as awards, certificates, diplomas and other vocational, competency-based qualifications (including those previously known as NVQ/SVQs) through awarding organisations including City and Guilds, Edexcel (BTEC) and OCR. FE colleges may also offer HE qualifications such as HNC, HND, foundation degree or PGCE. The colleges are also a large service provider for apprenticeships where most of the training takes place at the apprentices' workplace, supplemented with day release into college.

FE in the United Kingdom is usually a means to attain an intermediate, advanced or follow-up qualification necessary to progress into HE, or to begin a specific career path outside of university education. Further Education is offered to students aged over 16 at colleges of Further Education, through work-based learning, or adult and community learning institutions.

Education in Iran is centralized and divided into K-12 education plus higher education. Elementary and secondary education is supervised by the Ministry of Education and higher education is under the supervision of Ministry of Science, Research and Technology and Ministry of Health and Medical Education for medical sciences. As of 2016, around 94% of the Iranian adult population is literate. This rate increases to 97% among young adults ages between 15 and 24 without any gender consideration. By 2007, Iran had a student-to-workforce population ratio of 10.2%, standing among the countries with the highest ratio in the world.

Primary school (Dabestân, دبستان) starts at the age of 6 for a duration of six years (previously 5 years). Junior high school (Dabirestân دوره اول دبیرستان), also known as middle school, includes three years of Dabirestân from the seventh to the ninth grade. Senior high school (Dabirestân, دوره دوم دبیرستان), including the last three years (previously 4 years), is mandatory. The student at this level can study theoretical, vocational/technical, or manual fields, each program with its specialties. Ultimately, students are given a high school diploma. The requirement to enter into higher education is to have a high school diploma, and passing the national university entrance examination, Iranian University Entrance Exam (Konkur کنکور), which is similar to the French baccalauréat exam (for most of universities and fields of study). Iran suffers from a problem of over education and falsified academic degrees.