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What is the Best Way to Prepare Students to Face the Mathematics National Science Olympiad?

This inquiry often appears by many parents I’ve met, even from fellow teachers.
The Mathematics OSN is known as a very competitive
competition, with problems that demand critical mathematical abilities.
So, what is actually the best way to prepare children for this competition?

I personally had an experience when my friend’s younger brother tried to
join the Mathematics OSN at the district level.
At first, he studied the conventional way: solving practice problems, reading books,
and discussing with friends. But the results were not very satisfying.
After trying intensive tutoring through a private teacher, the results were completely different.

Is OSN Preparation the Same as Learning Math at School?

One thing that must be understood: preparing for OSN is not
the same as learning math daily at school.

According to research from Stanford University, competition-based learning demands higher-order thinking skills that differ from regular
classroom learning (Resnick, 1987). OSN emphasizes analysis, creativity, and the ability to connect concepts across topics.

That’s why students who rely only on school lessons often feel overwhelmed.
They need different strategies—and this is where guidance from private tutors
such as those at NgajarPrivat.com becomes extremely helpful.

OSN tutors are used to giving more challenging exercises, not just ordinary school exam
problems.

Why Are Private Tutors More Effective for Olympiad
Preparation?

I once talked with a private tutor from KoncoSinau.id who has
been mentoring Olympiad students for more than ten years.
He said that many kids are already smart, but without the right guidance, they are
like “lost” in the jungle of Olympiad problems.

This aligns with research from the Educational Testing Service (ETS),
which showed that personalized learning improves conceptual understanding by up to
30% compared to large classrooms (Bloom, 1984). Private
tutors can quickly identify student weaknesses—whether in number theory, combinatorics,
or geometry—and address them through a personalized approach.

I still remember when that student failed on a solid geometry
problem. His private tutor didn’t just teach formulas for volume
but also connected it with 3D visualization. With
that approach, the child understood much faster.

What’s the Difference Between Online and Offline OSN Private Lessons?

Another classic question is: which is better, online or offline OSN tutoring?

From my experience, both have advantages. Offline (face-to-face at home) offers comfort and full focus.
Meanwhile, online provides access to the best tutors from different cities.

Research from MIT shows that blended learning (a combination of online and offline) produces better
learning outcomes compared to a single method (Means et al., 2013).

So the issue isn’t which is better, but rather how comfortable the child
feels and whether they can stay consistent.

At LapakGuruPrivat.com, for example, there are options for tutors to come to the house for children who need
direct guidance, and Zoom/Google Meet sessions for those
in other cities. From my family’s experience, this flexibility is very helpful, especially when OSN
preparation time is tight.

How Important Is Practice in OSN Preparation?

Practicing problems is indeed important, but it’s not just about the
quantity of problems. According to research by Ericsson et al.

(1993), what matters more is deliberate practice—practice that is structured and comes
with direct feedback.

I personally witnessed how my friend’s younger brother used to complete 50 OSN
problems in a week, but his progress was slow. Once he joined an intensive
program at NgajarPrivat.com, the number of problems became fewer, but each one was discussed deeply
with different strategies. As a result, he quickly learned to
recognize patterns.

Private tutors usually have OSN problem banks from previous years, and even international Olympiads.
This allows students to become familiar with various levels of difficulty.

Can OSN Tutoring Shape a Child’s Character?

Many parents think private tutoring is only for academic improvement.
But from my experience, OSN preparation also helps build character.

According to a study from the University of Indonesia, Olympiad participants have
higher levels of grit and resilience compared to regular students (Putri,
2019). This is because they are used to facing tough problems and not giving up until they find
the answer.

I personally saw the student I mentored become more patient, more diligent, and more confident after attending OSN private
lessons. So the benefit is not only winning competitions, but also developing traits
that carry into everyday life.

Which OSN Math Tutoring Platforms Can Be Trusted?

Nowadays, there are many tutoring platforms, but from my personal
experience, three are worth recommending:

– **NgajarPrivat.com** → Ideal for intensive guidance, especially for students
who prefer face-to-face interaction.
– **KoncoSinau.id** → A great option for students who are more comfortable
with online learning, supported by flexible and experienced tutors.

– **LapakGuruPrivat.com** → Offers various OSN subjects, not only mathematics.
Perfect for families with children who have different academic interests.

All these platforms have proven successful in helping
many students reach the national stage. Interestingly, many of the tutors
are OSN alumni or top university students from
places like UI and ITB.

Conclusion: Should Students Take OSN Private Lessons?

If asked whether it’s mandatory, the answer is no. Many outstanding students succeed through self-study.

But in terms of time efficiency, the right strategies, and higher chances of success,
OSN private tutoring is clearly a wise choice.

With guidance from experienced tutors on platforms like
NgajarPrivat.com, KoncoSinau.id, or LapakGuruPrivat.com, students are not only
ready to tackle Olympiad problems but also equipped with the mental
strength to face future academic challenges.

In my view, this investment is absolutely worth it.
Because in the end, OSN is not only about winning medals, but also about shaping
a young generation ready to compete at the global level.

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