Parents’ level of education still greatly influences that of their children: individuals are 4.5 times more likely to attend higher education if one of their parents has a higher education degree than if both their parents have below upper secondary education.

On average across OECD countries, students’ belief that they can solve mathematics problems (mathematics self-efficacy) is associated with a difference of 49 score points in mathematics – the equivalent of one year of school.

Only in some countries is a larger proportion of immigrant students in schools related to lower student performance – and this relationship is mostly explained by the concentration of disadvantaged students in these schools.

Across OECD countries, 5% of students expect to work as teachers: 3% of boys and 6% of girls. The academic profile of students who expect to work as teachers varies, but in many OECD countries, students who expect to work as teachers have poorer mathematics and reading skills than other ambitious students who expect to work as professionals but not as teachers.

Graduation rates for bachelor’s and master’s degrees have dramatically increased over the past two decades, with 6 million bachelor’s degrees and 3 million master’s degrees awarded in OECD countries in 2013. Although women represent over half of the graduates at the bachelor’s and master’s level, they are still strikingly under-represented in the fields of sciences and engineering.

In 2012, 15-year-old students spent over two hours on line each day, on average across OECD countries. The most common online activities among 15-year-olds were browsing the Internet for fun and participating in social networks, with over 70% of students doing one of these every day or almost every day.

No country or economy participating in PISA 2012 can claim that all of its 15-year-old students have achieved basic proficiency skills in mathematics, reading and science. Some 28% of students score below the baseline level of proficiency in at least one of those subjects, on average across OECD countries

The number and length of school holidays differs significantly across OECD countries, meaning the number of instructional days in primary and secondary education ranges from 162 days a year in France to more than 200 days in Israel and Japan.

One in ten students at the master’s or equivalent level is an international student in OECD countries, rising to one in four at the doctoral level.

Fewer 15-year-olds in East Asian countries reported that they use memorisation than did 15-year-olds in some of the English-speaking countries to whom they are often compared.

The Survey of Adult Skills finds that even adults with the lowest proficiency in literacy possess some basic reading skills, although the level of these skills varies considerably across countries.

The education sector performs well for information and communication technology (ICT) and problem-solving skills, although it still lags behind the professional, scientific and technical activities sector.

The Survey of Adult Skills finds that adults aged 55 to 65 are less proficient in literacy and numeracy than adults aged 25 to 34. But differences in skills proficiency that are related to age vary widely across countries, implying that skills policies can affect the evolution of proficiency over a lifetime.

OECD countries differ significantly in the way spending on tertiary education is shared between public and private sources of funding, and in the financial support they provide to students.

Latvia has made good progress improving its education system since independence in 1991, but more efforts are now needed to raise teaching standards and ensure that all students have access to a quality education, according to a new OECD report.

Early childhood education and care programmes (ECEC) have become more accessible in recent years, with high enrolment rates in both early childhood educational development and preprimary education.

On average across OECD countries, the 20% of students who are most exposed to pure mathematics tasks (equations) score, on the PISA mathematics test, the equivalent of almost two school years ahead of the 20% of students who are least exposed.

Even when all students, including the most disadvantaged, have easy access to the Internet,a digital divide, based on socio-economic status, still persists in how students use technology.

Exposure to complex mathematics concepts and tasks is related to higher performance in PISA among all students, including socio-economically disadvantaged students.

Instructional leadership is the set of practices that principals use in relation to the improvement of teaching and learning. It is a strong predictor of how teachers collaborate and engage in a reflective dialogue about their practice.

More and more adults are earning a tertiary qualification, but not all tertiary degrees have the same value on the labour market. In general, postgraduate degrees such as master’s and doctoral degrees are associated with higher employment rates and earnings than bachelor’s degrees.

The most recent round of the assessment, PISA 2015, focused on 15-year-olds’ science literacy, defined as "the ability to engage with science-related issues, and with the ideas of science, as a reflective citizen".

Results from the OECD Programme for International Student Assessment (PISA) show that, among countries with a comparatively high gross domestic product (GDP) per capita, the amount spent on education is less important than how those resources are used.

Since 2009, Education at a Glance (EAG) has included an indicator on education and social outcomes using data from different surveys.

Countries have seen a major increase in the educational attainment level of their populations. In 1965, only 43% of young adults aged 25-34 had attained upper secondary education or higher on average across OECD countries. Fifty years later, upper secondary education had almost doubled with attainment levels reaching 84% in 2015.

The persistence of social inequities in education – the fact that children of wealthy and highly educated parents tend to do better in school than children from less privileged families – is often seen as a difficult-to-reverse feature of education systems.

On average across OECD countries, almost one in four students – whether boy or girl – expects to work in an occupation that requires further science training beyond compulsory education. This brief highlights the kinds of science careers 15-year-olds anticipate for themselves in the future.

Historically across the OECD, the teaching profession has been largely dominated by women. The share of female teachers has been increasing over the past decade – reaching 68% in 2014 for all levels of education combined. The gender disparity decreases gradually with the level of education, from 97% of women in pre-primary education to 43% in tertiary education.

In countries that performed above the OECD average in science, at least 80% of the students are in schools that invite specialists to conduct teacher training or organise in-service workshops for teachers or where teachers cooperate with each other. This is higher, on average, than what is observed among other countries.

The striking cross-national variation in socio-economic disparities in skills gaps among 15-year-olds, and the evolution of these gaps between the ages of 15 and 27, raises the question of what policies and institutional arrangements may explain such variability.

Despite the geographical distances between them, Ibero-American countries share some similarities in their educational attainment rates and private expenditure on educational institutions as a percentage of GDP.

New teachers are more likely to feel prepared in the content of their subject field(s), rather than the pedagogy or classroom practice of their subject field(s).

In most countries with available data, public educational institutions charge different tuition fees for national and foreign students enrolled in the same programme. In Australia, Austria, Canada, New Zealand and the United States, foreign students pay on average about twice or more the tuition fees charged to national students.

In some countries and economies, such as Beijing-Shanghai-Jiangsu-Guangdong (China), Qatar,Thailand, Tunisia and the United Arab Emirates, students spend at least 54 hours per week learning at and outside of school combined, whereas in others, like Finland, Germany, Sweden, Switzerland and Uruguay, students spend less than 40 hours studying.

Local governments are the main contributors to the financing of early childhood education, particularly with regards to core goods and services such as staff salaries and school buildings. Households and other private entities bear a greater share of the cost than in other levels of education, particularly for ancillary services such as meals, school health services and transport.

The combined effects of policy reforms to attract and/or retain teachers, and financial constraints in the context of the economic downturn in 2008 may explain part of the recent trends in teachers’ salaries: decreases in statutory salaries and smaller salary gaps between levels of education.

For the first time, the 2015 round of PISA collected data on students’ exposure to bullying. These data show that bullying is widespread. On average across OECD countries, around 11% of students reported that they are frequently (at least a few times per month) made fun of, 8% reported that they are frequently the object of nasty rumours in school, and 7% reported that they are frequently left out of things.

Globally, enrolment in secondary education has expanded dramatically over the past decades. This expansion is also reflected in PISA data, particularly for low- and middle-income countries. Between 2003 and 2015, Indonesia added more than 1.1 million students, Turkey and Brazil more than 400 000 students, and Mexico more than 300 000 students, to the total population of 15-year-olds eligible to participate in PISA.

The transition from school to work can be a difficult period associated with spells of unemployment. Data show that those who leave school early have comparatively low skills and low educational attainment and face the greatest challenges in the labour market compared to their peers who stayed in education longer.

Almost all mathematics teachers across participating countries use clear and structured teaching practices, according to both teachers and students. A vast majority of teachers also use student-oriented practices and enhanced learning activities in their classroom.

As educators know well, there are many barriers to learning that originate outside of school, such as those that arise from socio-economic disadvantage. In many education systems, the concentration of disadvantaged students in certain schools poses an additional challenge.

Although girls and boys perform similarly in the PISA science assessment at age 15, girls are less likely than boys to envision a career in science and engineering, even in countries where they outperform them.

Solving unfamiliar problems on one’s own is important, but in today’s increasingly interconnected world, people are often required to collaborate in order to achieve their goals. Teamwork has numerous benefits, from a diverse range of opinions to synergies among team members, and assigning tasks to those who are best suited to them.

The Innovative Teaching for Effective Learning (ITEL) Teacher Knowledge Survey is the first international study to explore the nature, function and development of teachers’ pedagogical knowledge, i.e. what teachers know about teaching and learning.

This month’s PISA in Focus provides an overview of the assessment’s results and shows that collaborative problem-solving performance is positively related to performance in the core PISA subjects (science, reading and mathematics). The results also show, among other findings, that girls perform significantly better than boys in collaborative problem solving in every country and economy that participated in the assessment.

Despite the obvious benefits derived from education, governments face difficult trade-offs when balancing the share of public and private contributions to education.

Standardised tests help measure student’s progress at school and can inform education policy about existing shortfalls. However, too much testing could lead to much pressure on students and teachers to learn and teach for a test, something that would take the joy out of the learning process.

Across OECD countries, more and more individuals have attained tertiary education and the share of those with less education has declined. Although there are more tertiary-educated individuals than ever before, they still achieve good labour market outcomes.

While teachers can make a great difference to student outcomes, we know little about how they teach and what makes “good” teaching. The TALIS Video Study is a new OECD project that aims at understanding what teaching practices are used, how they are interrelated, and which ones are most related to students’ cognitive and non-cognitive outcomes.

PISA 2015 data show that, on average across OECD countries, as many as three out of four students from the lowest quarter of socio-economic status reach, at best, only the baseline level of proficiency (Level 2) in reading, mathematics or science.