The First 90 Days at an International School: Language, Classroom, Belonging and Teenagers

What does a child who has just joined an international school most need to adjust to?

Many parents think first of English.

English matters. But once a child is actually in a new school, the change is usually more than language.

How to take part in class, how to express their own thinking, how to handle new kinds of learning tasks, how to manage their time, and how to rebuild friendships and a sense of belonging can all need adjusting to.

For Chinese families around the world, children's earlier education varies a great deal.

Some come from mainland China's public schools. Some come from the local systems of Hong Kong, Taiwan, Singapore or Malaysia. Some have had bilingual education. Some were already at another international school, but moved country, city or curriculum because of a parent's job, a relocation or an education plan.

So there is no single "international school adjustment timetable" that fits every child.

This article divides the first 90 days after a transfer into three stages, only to help families notice change:

Days 1–30: first, make sense of the new classroom.

Days 31–60: begin to express your own thinking.

Days 61–90: friendships, relationships and belonging matter more and more.

90 days is not a deadline.

A more useful question than "is my child fully adjusted after three months?" is:

Compared with the first day, is my child getting better at learning here, speaking up, asking for help, and building relationships with people?

1. A transfer does not wipe the slate clean

When moving between education systems, a common mistake is to write off everything a child learned before.

Take a student from a Chinese public school as an example.

Many of these children have developed good study habits: they listen carefully in class, complete tasks as asked, reinforce knowledge through practice, and respect teachers and classroom rules.

Those abilities remain valuable in an international school.

What changes is that a new classroom may ask a child to show their learning in more ways.

Before, "studying hard" might mostly have meant finishing the tasks the teacher set well.

In a new classroom, a child may also need to:

explain why they did something;

listen to different opinions;

revise their work based on feedback;

ask questions on their own;

or, when they don't understand, tell the teacher:

"I need help with this part."

So it is not helpful to tell a child:

"What you did before is no use here."

A child may hear, not "learn a new method", but:

"Everything I did before was wrong."

A better way to put it is:

"Much of what you learned before is still here. You are just adding some new ways of doing things."

A transfer is not starting from scratch.

It is growing on the foundation you already have.

2. Days 1–30: first, make sense of this classroom

In the first month after a transfer, parents most often notice English.

"Is the teacher speaking too fast?"

"How much does my child actually understand?"

"Why can't my child say what they learned today when I ask after school?"

Sometimes it really is a language problem.

But sometimes:

the child understands, but does not yet know how this classroom expects them to take part.

For example, children who were used to very explicit classroom rules may often hear, in a new classroom:

"What do you think?"

"Talk to your partner."

"Can you explain why?"

"Is there another way?"

When a child doesn't speak up straight away, it doesn't necessarily mean they can't do it.

They may be wondering:

"Does the teacher really want to hear my ideas?"

"What if I'm wrong?"

"Everyone is discussing. When is a good time for me to speak?"

"Am I allowed to disagree with others?"

This is really a process of adjusting to classroom culture.

UNESCO's global guidance on multilingual education stresses that students' existing language and cultural experience should be a resource for continued learning, not an obstacle to be removed when they enter a new environment.

So in the first month, rather than focusing only on grades, it helps to notice small changes.

Is the child starting to know when they can ask a question?

Do they dare to ask for help when they don't understand?

In group activities, are they moving from simply listening to taking on a task?

These changes look small, but they show that:

the child is gradually making sense of school life here.

3. Days 31–60: from "I know the answer" to "I can explain why"

In the second month, some children start to complain:

"The answer is right, so why does the teacher keep asking why?"

"Why do we have to explain our working in maths?"

"Why do I have to revise this project so many times?"

This is often not a drop in ability. The expectations of learning have changed.

Harvard Project Zero's Visible Thinking research emphasises using Thinking Routines, documentation and discussion to make thinking that was previously in students' heads visible. This helps teachers understand how students think, and helps students reflect on their own learning.

In the classroom, this is very concrete.

Before, a child may already have known:

what the answer is.

Now they need to gradually learn to answer:

"How did I get this answer?"

A maths lesson might ask:

"What method did you use?"

A science lesson might ask:

"What is your evidence?"

A reading lesson might ask:

"Why do you understand this character in this way?"

Some children say:

"I know it in my head, but when I have to say it out loud, I don't know how."

This is normal.

Turning understanding in your head into language is itself a skill that needs practice.

And this does not mean every child must become outgoing or talkative.

A quiet child can also let others understand their thinking, through writing, group discussion or short explanations.

4. Days 61–90: the child starts asking "do I belong here?"

By the third month, some children no longer feel that English is a fog every day.

This is when friendships and belonging often become more important.

"Who will I sit with at lunch?"

"Everyone else already has friends. What should I do?"

"In group work, will anyone want to work with me?"

Teenagers are especially likely to worry about these questions.

The US Centers for Disease Control and Prevention (CDC) describes school connectedness as students feeling that adults and peers at school care about them as people and about their learning, and feeling supported, valued and part of the school.

The CDC notes that students with a stronger sense of school connectedness are more likely to have better attendance, grades and high school graduation outcomes.

So at this stage, it is worth asking a little less:

"How much has my English improved?"

and asking more specific questions:

Is there a classmate my child talks to regularly?

Who do they usually eat lunch with?

If they run into trouble, do they know which teacher to go to?

Are they more willing to join group activities than when they first arrived?

Sometimes, a child says very naturally after school:

"I had lunch with a classmate today."

That may be a very important thing.

5. Why did grades fall after doing well before?

This is one of the most worrying questions for many Chinese families.

Grades were good before, but the first test after the move was clearly lower.

Don't rush to a conclusion.

Sometimes a child is good at maths, but reads English word problems slowly.

Sometimes a child understands a science concept, but cannot yet fully explain it in English.

Sometimes the curriculum is different, and what the new school has already covered was not yet taught at the old school.

Sometimes there is no clear gap in knowledge, just unfamiliarity with projects, long-term tasks or new ways of being assessed.

Of course, there may also be real gaps in knowledge that need filling.

So when you see a change in grades, the first step is not to add tutoring straight away. First ask:

Which connection is missing: language, the order of the curriculum, the format of the task, or the knowledge itself?

If the problem is not identified correctly, more time spent may not help much.

If a child understands science but is weak at writing in English, the help they need is completely different from relearning the whole science chapter.

Find the problem first, then decide how to help.

6. In the first 90 days, the family's most important role may be stability

When a child runs into difficulty, parents easily jump straight into "problem-solving mode".

English is slow, so add English.

Maths is the issue, so add maths.

They are afraid to speak, so add speaking practice.

These approaches can sometimes help.

But remember:

the child is already dealing with a new language, new teachers, new courses and new classmates during the day.

If every evening after school is filled with classes, they may not even have time to digest their day.

In the early stage of a transfer, one important form of support a family can offer is actually:

stability.

At dinner, rather than asking every day:

"What score did you get today?"

you could ask:

"Was there anything interesting today?"

"Was there anything you didn't understand?"

"Who did you work with today?"

"Which thing felt a bit hard?"

The real process of adjustment is often hidden in these answers.

7. Teenage support: some things children will not tell their parents

Teenagers who transfer often face problems that are less obvious in younger children:

they already care a great deal about what others think of them.

Saying something wrong in English feels embarrassing.

Having been a top student, suddenly needing help from others may feel like losing face.

Other students already have their friendship groups, and they don't know how to join, yet they don't want to admit they feel lonely.

Some children also think:

"My parents changed schools, moved house and put in so much effort for me. I can't say I don't like it."

So adults may only see:

the child becoming quiet;

getting angry easily;

not wanting to talk about school when they come home;

or even suddenly saying:

"I don't want to go to school any more."

At this point, "getting support for a teenager" does not mean immediately treating the child as having a mental illness.

Often, the first step is simply:

someone who is willing to listen without rushing to judge.

The World Health Organization (WHO) notes that adolescence is an important stage of social and emotional development, and that protective, supportive environments in families, schools and communities matter a great deal for adolescent mental health. WHO estimates that about one in seven 10–19-year-olds worldwide experiences a mental health condition.

Missing an old school, a short drop in grades, or occasional low mood after a move does not automatically mean a mental health problem.

What is worth watching is:

how long the change lasts, and whether it has started to significantly affect everyday life.

If a child is simply missing old friends and needs a longer time to adjust, it is usually fine to keep observing through family support, stable relationships and communication with the school.

If a child strongly and persistently refuses to go to school, withdraws for a long time from friends and activities they used to enjoy, has sleep, eating or daily life clearly affected, or stays in strong anxiety, low mood or hopelessness for a long time, it is worth seeking help from a qualified child and adolescent mental health professional.

If a child expresses self-harm, death or suicide, or there is an immediate safety risk, do not treat it only as "not adjusting to a transfer". Seek local professional or emergency support promptly. WHO also stresses early identification and appropriate support for adolescent mental health problems, and avoiding stigma and over-medicalisation.

8. Some children really struggle with having to "start again" repeatedly

For some Chinese families around the world, a transfer is not a first.

Because of a parent's work, business, relocation or education plans, a child may have moved many times since they were small.

Adults see:

moving from one city to another.

A child may experience:

just getting to know a teacher, and then having to leave;

just making friends, and then saying goodbye;

just finding their place in the class, and then becoming "the new one" again.

Frequent moves do not mean a child will necessarily have problems.

But one question is worth families keeping in mind over the long term:

Does my child have the chance to build stable and lasting relationships?

If life keeps repeating:

meet, get to know, build a relationship, then leave,

some children may gradually become cautious.

They may not tell their parents:

"We'll move again anyway, so I don't want to get attached."

But their behaviour may show it: a reluctance to build long-term relationships, a weak connection to school, or growing difficulty feeling a sense of belonging anywhere.

So sometimes, when a teenager says:

"I don't want to study any more,"

it is worth asking beyond the learning itself:

"Is there a place they feel is worth investing in for the long term?"

Motivation to learn and a sense of belonging are sometimes closer together than we imagine.

9. If you are considering CCS, what can a family with a mid-year transfer prepare in advance?

For families preparing to enrol at Chiang Mai Cedar International School (CCS), rather than preparing only a report card, it helps to give the school as full a picture of the child's learning as possible.

According to the admissions information CCS publishes on its website, the application process is:

Fill in the enquiry form → pre-admission test (English, Math, Grammar, Reading) → interview (online or on campus).

You can find out how to apply on the admissions page.

For a mid-year transfer student, families can organise in advance the child's past curriculum, main language of instruction, recent learning records, and which subjects they feel confident in and which they are finding difficult.

If a child has transferred several times, you can also say so:

How long does the child usually take to adjust to a new environment?

Were there clear emotional or learning changes after previous moves?

What kind of teacher and classroom approach has helped the child settle in before?

This kind of information is often more useful than just saying "my child has good grades".

For a student from a Chinese public school, there is also no need to describe their past learning as something that must be completely changed.

Discipline, a solid knowledge base, habits of completing tasks and persistence in learning can all be a new starting point.

What really needs to be discussed is:

Where does my child stand now? Where is a sensible place to start next?

On student support, CCS publicly offers free professional counselling, giving students a safe space to talk about their emotions, stress, friendships and learning difficulties, and working with parents and teachers where needed. The school also offers free weekly parenting classes for families. For the details of what is available in the current school year, you can confirm with the school when you apply, and see the behavioural support page.

10. The first 90 days: what parents can watch for

This is an observation table, not an assessment.

What really matters is the direction of change.

Before, a child sat silent when they didn't understand; now they dare to ask the teacher.

Before, they ate lunch alone; now they have a friend who sits with them.

Before, they didn't know what to do with a task; now they know how to ask for help.

These are all progress.

Frequently asked questions

Is English usually the biggest difficulty when moving to an international school?

Not necessarily.

English is important, but how you take part in class, how the curriculum connects, academic expression, self-management and peer relationships may all change at the same time.

What many children really need to learn is:

how to keep using the abilities they already have in a new environment.

For a student from a Chinese public school, do past study methods become a burden?

It isn't that simple.

Listening carefully, practising solidly, completing tasks on time and following classroom rules are all still valuable.

In a new classroom, a child may need to add active questioning, explaining their reasoning, collaboration, task management and asking for help.

This is an expansion of skills, not a reset of everything from the past.

My child did well before. Why did grades drop after the move?

First, identify the cause.

It may come from language, the order of the curriculum, the format of tasks and how work is assessed. There may also be real gaps in knowledge.

A short-term drop in grades on its own does not show that a child's overall ability has declined.

My child doesn't speak up. Does that mean an international school is not right for them?

You can't judge it that way.

Language, personality, sense of security and past classroom experience all affect when a child starts to speak up.

What is more useful to watch than "how much they talk" is:

whether participation is gradually increasing.

How long does it take a child to adjust?

There is no fixed answer.

The 90 days in this article are only a way for families to observe the early stage of a transfer.

Some children settle in quickly, and some need a semester or longer.

Closing: adjusting does not mean turning your child into someone else

A child may come from Shanghai to Chiang Mai,

transfer from Taipei to another international school,

move from Kuala Lumpur to Thailand,

or return to Asia from Europe or America with their parents.

For adults, it may be just a change of school.

For the child, the whole daily world may have been rearranged.

They need to find out again:

Who is my teacher?

Who will eat lunch with me?

What happens if I get something wrong?

Can I ask for help when I don't understand?

Is there anyone here who really knows me?

So what is really worth watching in the first 90 days is not only:

"How much has my child caught up?"

but:

"Is my child getting better at living and learning here?"

The knowledge they learned before does not need to be wiped clean.

Their own language does not need to be wiped clean.

The study habits they formed before do not need to be wiped clean either.

A good transfer lets a child bring everything they already have, and slowly discover that:

Here, too, there are people who know me.

Here, too, there are people willing to help me.

I can keep learning, and I can gradually become part of this place.

Once that feeling starts to take root,

learning often also becomes easier to make real.

References

**UNESCO — Languages Matter: Global Guidance on Multilingual Education**

Global guidance on multilingual education, on learners' existing language and cultural resources, and on inclusive learning environments.

Harvard Project Zero — Visible Thinking & Thinking Routines

Research and teaching resources on how to help students make their thinking visible, deepen it and reflect on it.

U.S. Centers for Disease Control and Prevention (CDC) & World Health Organization (WHO)

Authoritative material on school connectedness, support from teachers and peers, and adolescent mental health and protective environments.

Chiang Mai Cedar International School — Admissions

Admissions information published by CCS, including the pre-admission test and interview.