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  5. Is Passing the STIS Entrance Test Possible for Kids Outside Big Cities?

    My Experience and Lessons Learned

    The moment STIS is mentioned, people often assume it’s only for students in major cities with good tutoring centers,
    excellent teachers, and endless resources.

    I also believed that.

    In my small hometown in East Java, learning felt
    restricted.

    Over time, I understood that lack of access shouldn’t become
    an excuse.

    Those limitations turned into motivation to work twice as much.

    What Makes STIS So Attractive?

    For years, STIS has remained a favorite institution among students
    across Indonesia.

    Not only is it under the Central Statistics Agency (BPS), but
    its graduates also have clear career prospects.

    Parents trust that being accepted into STIS guarantees long-term career stability.

    A study by UI highlights that official government
    colleges attract students with their strong academics and reliable
    career paths.

    No wonder thousands compete every year for the
    limited seats.

    Challenges of Studying in a Small Town

    To be frank, studying for the STIS exam in a small town is really tough.

    Access to quality test prep is often centered in urban areas.

    Local libraries often don’t have enough relevant books.

    The internet connection is unstable—sometimes fine, sometimes very slow.

    At first, I tried studying with my old high school
    textbooks, some even torn.

    The effect? It was very difficult to adapt to STIS problem styles.

    The hardest parts were higher-level math and quantitative logic.

    Wibowo’s 2020 research at Gadjah Mada reveals restricted access severely disadvantages rural students in government school admissions.

    I personally went through that situation.

    How to Catch Up?

    Fortunately, now there are many online platforms.

    I first discovered BelajarCPNS.com, which often held STIS tryouts similar to the real CAT system.

    From there, I realized my weaknesses: basic math and English.

    Eventually, I sought online tutoring help through
    NgajarPrivat.com.

    Tutors taught patiently, sometimes using daily analogies.

    According to Bloom (1984), private tutoring can double academic
    effectiveness compared to group classes.

    And I experienced that myself.

    As reinforcement, I attended intensive prep from LapakGuruPrivat.com.

    Their main aim was teaching quick problem-solving strategies.

    By myself, I usually spent too much time on one item.

    Here, the training emphasized understanding patterns rather than merely memorizing answers.

    What’s the Difference Between Studying Alone and with a Community?

    Learning by yourself can be very discouraging.

    Unsolved questions eventually drained my spirit.

    Because of that, I sought out a peer-learning group on KoncoSinau.id.

    In the forum, I connected with friends from across the country.

    It was almost like building a new family circle.

    At times they exchanged shortcut methods, at other times motivating words.

    That support was extremely useful.

    Studies at UNY found collaborative learning increases motivation significantly, around 35%.

    I definitely felt that impact.

    What Should You Practice for the STIS Entrance Exam?

    From what I went through, three subjects are absolutely critical.

    Math, simple and complex, forms the central requirement.

    English—many ignore it, but it can make or break acceptance.

    The aptitude test—focused on reasoning and quick thinking.

    My habit was structured: early math, later English, evening aptitude.

    Though not perfect, consistent effort showed results.

    Research from Harvard University (Duckworth, 2016) shows success depends not only
    on talent but on grit—long-term consistency.

    So even when bored, I pushed little by little.

    Are Tryouts Really Important?

    Yes, very much.

    At first I doubted, but after several tryouts at BelajarCPNS.com, I realized simulations are vital.

    It’s practice in both knowledge and timing.

    Studies confirm tryouts enhance outcomes by preparing students
    for real test conditions.

    Thus, beyond theory, consistent CAT practice is crucial.

    What If You Feel Mentally Down?

    Many experience this.

    Particularly after failing in practice tests.

    I almost gave up then.

    Gradually, I accepted not blaming myself excessively.

    Advice from my tutor stuck with me: “Focus on growth,
    not comparisons.”

    That advice stayed with me.

    To keep my spirits up, I returned to my friends at
    KoncoSinau.id.

    Sometimes just venting lightened my heart.

    So, Can Rural Students Pass STIS?

    The truth: it’s very possible.

    I’m not from a big city, but with tutoring, online tryouts, intensive courses, and peer support, it became achievable.

    The path is tougher, but not unachievable.

    NgajarPrivat.com clarified challenging topics for me.

    LapakGuruPrivat.com provided special strategies for problem solving.

    BelajarCPNS.com gave me authentic tryout practice.

    KoncoSinau.id gave motivation from fellow fighters.

    Together, these four resources made my prep solid.

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  9. What is the Best Way to Prepare Children for the National Science Olympiad in Mathematics

    This inquiry often comes up 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?

    Doing practice questions is indeed important, but it’s not just about the amount 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** → Best 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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