What International School Rankings Don't Tell You About Where to Raise Kids

Imagine you are a parent in Lagos. Your daughter is nine. She comes home quiet again. You ask about school, and she shrugs. Her teacher has so many children in the room that she has never once read your daughter's story out loud.

At night you scroll through school rankings. Singapore is first. Finland is slipping. Nigeria does not take part. India only tested two states. You stare at the bar charts and ask the only question that matters to you: what would her day actually feel like somewhere else?

A ranking cannot answer that. Education is the teacher who notices she is struggling. It is the counsellor she can talk to when anxiety hits at fourteen. It is the walk to the school gate and whether she feels safe on it.

The short answer: PISA rankings tell you what 15-year-olds know. They do not tell you how many children share one teacher, whether bullying is handled, whether there is a counsellor, or whether your visa even gives your child a free school place. On those measures, Canada, Australia, Finland, Germany and New Zealand offer a very different childhood from overcrowded public schools at home. Check the class size, the support for extra needs and your school fees before you check the ranking.

We compared twelve countries: the five home countries above and the places their families most often consider. The next PISA results (the 2025 assessment) come out in December 2026, so the latest full data is PISA 2022.

Class size: the number that changes everything

On class size, the research is consistent. Below 20 students, a teacher can give each child attention. Below 15, lessons can be tailored. Above 35, it becomes crowd control.

Average primary school class sizes

Think of a teacher's attention like one pot of rice. Split it 80 ways and everyone gets a spoonful. Split it 18 ways and every child eats. A child in a Lagos public school might share the teacher with 79 other students. A child in Helsinki shares the teacher with 17.

A child can score well in a crowded system and still get no feedback and no early help. India's Right to Education Act sets a 30:1 primary norm on paper. But the government's own UDISE+ data still records thousands of single-teacher schools and districts where the real ratio is far higher.

Teacher quality and pay

Teacher pay and training

In Finland, only about 10% of applicants to teacher training get in, close to medical school. In Germany, teachers train for 5-7 years and most are civil servants (Beamte) with secure jobs. Several Australian states pay sign-on and retention bonuses running into the thousands for hard-to-staff schools.

In Nigeria, World Bank service-delivery surveys find teacher absence of 20-30% in some states. Pay has risen on paper since 2022, but the weaker naira means the dollar value has barely moved. So qualified Nigerian teachers are leaving too. See the best countries for Nigerians to migrate to.

What this means in the classroom

A well-trained teacher with 22 students can read every child's work and spot early signs of trouble. Dyslexia affects roughly 10% of children globally but is badly underdiagnosed in developing countries. A poorly paid teacher with 60 children is just getting through the day. Lessons become copying from the board. A quiet child is invisible.

School safety: what you feel but rarely measure

School safety indicators

Finland's KiVa programme, built at the University of Turku, is not a poster on the wall. It has trained staff and clear steps. Bullying dropped by 30-50% in schools that adopted it, and schools in dozens of countries now use it.

The walk to school

Picture your son at nine, walking to school alone with a friend. In many Nigerian, Indian and Philippine cities, that walk means traffic with no pavements and open drains. In many Canadian, Australian, German and Finnish cities, children walk or cycle alone from age 8-9.

Getting around without an adult builds confidence and fitness. To check a specific city, our guide on how safe your city really is according to crime data shows how to read the numbers, not the headlines.

Mental health support: the silent gap

Mental health resources in schools

Roughly 13% of teenagers worldwide experience depression. Anxiety disorders affect 7-10% of children. A child in Lagos feels anxiety about as often as a child in Toronto. The difference is whether anyone at school is trained to notice.

In Canada, students can often refer themselves to a counsellor. Australia has headspace school programmes and state-funded wellbeing coordinators. In Finland, every student can see a nurse, doctor, psychologist and social worker. England's NHS-funded Mental Health Support Teams now cover well over half of pupils, with the aim of reaching every school by the end of the decade.

In most Nigerian public schools, a child with anxiety or depression has no one to talk to. That is a problem of money, not culture. For what support looks like after you arrive, see mental health support by country.

After the bell: extracurriculars

For a new child, a club is often where they first feel they belong.

Extracurricular availability in public schools

A Canadian public high school typically offers sport, band, drama, robotics and debate, mostly free, with coaches and transport. A Nigerian public school often offers a bare classroom, with clubs funded by parents. India's Atal Tinkering Labs have put maker spaces into thousands of government schools, but that is a small share of the roughly 1.5 million schools in the country.

What PISA scores actually show

PISA 2022 mean scores

Treat small rank gaps as noise. The roughly 100-point gap between the Philippines and the top is not noise. On the PISA scale, that is like several years of school.

Fairness. The gap between Canada's strongest and weakest students is among the smallest in the world. A child from a low-income immigrant family performs far closer to the national average than a similar child in most other countries. See our Canada versus Australia guide for immigrants.

Happiness. Finland's scores have dipped, yet its students report some of the highest school satisfaction and lowest anxiety. They get roughly 15 minutes of outdoor play for every 45 minutes of lessons.

Creativity. PISA barely measures open projects and teamwork, although the 2022 cycle added a "creative thinking" module.

Special needs: the real test of a school system

Imagine your son is diagnosed with dyslexia or ADHD a year after you land. Will the school help, or are you alone?

Special education support

In Canada, a child with a diagnosed disability has a legal right to an Individualized Education Plan, which might include extra time on tests, a teaching assistant or assistive technology. The school pays.

Finland's three-tier model works like a staircase: general help for all, targeted help when a child falls behind, then a full specialist plan. No diagnosis is needed for the first steps, so problems are caught early. The Philippines' Inclusive Education Act of 2022 promised inclusive learning resource centres in every school district, but rollout is still uneven.

Cost and access: the part migrants get wrong

A great public school is worth nothing if your visa locks your child out of it.

• Canada, Australia, New Zealand: Children of most work-permit and permanent-resident holders go to public school free. In parts of Australia, temporary-visa families can pay a few thousand dollars a year per child, so check the state.
• UK and Germany: State schools are free to residents. The hurdle is affording a home near a good one.
• Finland: Public school is free, and so is the hot school lunch, which Finnish schools have served for decades.
• UAE and much of the Gulf: There is no real free public option for expatriate children. A good school can cost roughly US$8,000 to well over US$25,000 per child per year. Budget for it before you accept the job.

See the true cost of migrating abroad. For school access by country, see migrate to Canada, migrate to Finland and migrate to New Zealand, plus the Canada arrival guide and Finland arrival guide.

What PISA predicts, and what it does not

PISA scores moderately predict: university results, later test scores and national GDP growth.

PISA scores do not predict: career success, life satisfaction, creativity or mental health. The job market your child enters matters as much, and youth unemployment and graduate hiring odds around the world vary far more than test scores do.

Long-term research points to these instead:

1. A secure bond with at least one caring adult
2. Physical safety and enough food
3. Healthcare, including mental health
4. Time to play and explore
5. A sense of belonging
6. Exposure to different people and ideas
7. Moderate, not crushing, academic pressure

None of these is "highest maths score at age 15."

How to choose, practically

Ask yourself these questions before you commit:

• What is the real class size in the area I can afford? National averages hide big local differences.
• Does my visa give my child a free public school place? If not, redo your budget.
• What happens if my child has, or later develops, extra needs? A legal IEP or EHCP is worth more than any ranking.
• How hard will the move be for them? Read our guides on third-culture kids, raising bilingual children between two countries and raising children abroad, Africa versus Europe.

Frequently asked questions

Is Finland still the best school system in the world in 2026?

Finland's PISA scores have fallen from their late-2000s peak. But for a child's whole day, it is still one of the best: free meals, small classes, master's-qualified teachers, KiVa and early special-needs support.

Which country is easiest for a migrant child to settle into?

Canada, Australia and New Zealand. Their schools are built for large immigrant intakes, with strong English support.

Do I have to pay for school as a migrant?

It depends on your visa. In Canada, the UK, Germany, Finland, and for permanent residents in Australia and New Zealand, public school is generally free. In the UAE and the wider Gulf, expatriate families almost always pay private fees. Check your visa class before you move.

Should I choose a country by its PISA ranking?

No. It measures a narrow slice of what a 15-year-old knows. Class size, teachers, safety, support and cost shape your child's day far more.

What if my child has additional learning needs?

Prioritise Canada (IEPs), the UK (EHCPs), Australia (NCCD) and Finland (three-tier model), where the school must fund the help. In much of the developing world, and even in some private international schools, no such right exists.

The honest picture

For a parent in Nigeria, India, the Philippines, Egypt or Pakistan, the gap is real. It is a class of 70 against a class of 22. A teacher earning $250 a month against one earning $5,000 a month. No counsellor against a mental health team. Bare walls against a robotics lab.

Rankings are the tip of the iceberg. Ask yourself one thing: will this school see my child as a whole person, or as a test score? That answer is worth more than any league table.