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Since July 2026
Instructor since July 2026
Chemistry Olympiad Preparation | Advanced Problem Solving & Competition Training
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From 74 C$ /h
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This course is intended for ambitious students preparing for national or international Chemistry Olympiads, as well as anyone who wants to study chemistry beyond the standard high school curriculum.

Lessons focus on developing advanced analytical thinking and problem-solving abilities rather than simply learning formulas. Depending on your experience and goals, we will explore Physical Chemistry, Organic Chemistry, Inorganic Chemistry, Thermodynamics, Equilibrium, Electrochemistry, Reaction Mechanisms, and advanced quantitative problem solving.

As a National Gold Medalist in the Iranian Chemistry Olympiad, I understand the level of reasoning and creativity required to succeed in Olympiad competitions. My teaching approach emphasizes building intuition, recognizing patterns, and learning how to approach unfamiliar problems with confidence.

Whether you're preparing for your first Olympiad or aiming for the highest levels of competition, lessons are adapted to your current knowledge and designed to progressively challenge your abilities.
Extra information
Lessons are delivered online using a digital whiteboard.

Students should have paper, a scientific calculator, and any Olympiad resources or problem sets they are currently studying. Additional practice problems, personalized assignments, and solution discussions are provided after lessons. Since Olympiad preparation requires consistent practice, students are encouraged to dedicate time to independent problem solving between sessions.
Location
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Online from United States
About Me
Hello! I'm a Chemistry tutor with over four years of teaching experience and a passion for helping students build confidence in chemistry.

I am a National Gold Medalist in the Iranian Chemistry Olympiad and currently a medical student at Tehran University of Medical Sciences. Throughout my teaching career, I have worked with more than 100 students, helping them prepare for IB, A-Level, AP, university entrance exams, and Chemistry Olympiads.

My teaching philosophy is simple: chemistry should be understood, not memorized. I focus on building strong conceptual foundations, developing problem-solving skills, and adapting every lesson to the student's learning style and goals.

I enjoy teaching motivated students of all levels, whether they need support with school, are aiming for top exam scores, or want to challenge themselves with advanced chemistry. Lessons are interactive, well-structured, and designed to make even difficult topics feel logical and approachable.

I believe every student can excel with the right guidance, patience, and practice, and I look forward to helping you achieve your academic goals.

phone number: +989120549676
instagram: pi.yavari
Education
Tehran University of Medical Sciences (TUMS)
Doctor of Medicine (M.D.)
Current Medical Student

National Gold Medalist – Iranian Chemistry Olympiad
Ranked among the top students nationally after successfully completing the national Chemistry Olympiad program.
Experience / Qualifications
• Over 4 years of private and online chemistry tutoring.

• More than 100 students taught, ranging from high school to pre-university level.

• Specialized in IB Chemistry (HL & SL), A-Level Chemistry (AQA, Edexcel, OCR, Cambridge), AP Chemistry, and Chemistry Olympiad preparation.

• National Gold Medalist in the Iranian Chemistry Olympiad.

• Experienced in preparing students for school examinations, standardized international curricula, and advanced chemistry competitions.

• Personalized one-to-one online lessons using a digital whiteboard, with tailored study plans, practice questions, and regular progress assessment.

• Strong emphasis on conceptual understanding, critical thinking, and effective exam strategies rather than rote memorization.
Age
Teenagers (13-17 years old)
Student level
Beginner
Intermediate
Advanced
Duration
60 minutes
The class is taught in
English
Availability of a typical week
(GMT -05:00)
New York
at teacher icon
Online via webcam
Mon
Tue
Wed
Thu
Fri
Sat
Sun
00-04
04-08
08-12
12-16
16-20
20-24
True mastery of chemistry comes from conceptual clarity, not rote learning. Combining the rigorous edge of a National Gold Medalist with four years of hands-on experience mentoring 200+ students, I build structured learning paths tailored to your exact goals. My online classes are completely interactive, leveraging a digital writing tablet to make complex problem-solving feel natural and intuitive.
I believe if you feel unsuccessful you should try, if you are trying you must be patient and if you are pleased with everything, you have to raise your expectations.
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This course is designed for students studying A-Level Chemistry under AQA, Edexcel, OCR, or Cambridge examination boards.

Whether you're preparing for your final exams, improving your understanding of difficult topics, or aiming for an A or A* grade, lessons are tailored specifically to your syllabus and academic goals.

Together, we'll cover Physical, Organic, and Inorganic Chemistry while developing the problem-solving skills and exam techniques required to succeed in A-Level assessments. Lessons include worked examples, challenging practice questions, past paper discussions, and detailed explanations of difficult concepts.

As a National Gold Medalist in the Iranian Chemistry Olympiad with extensive private teaching experience, I focus on helping students truly understand chemistry instead of relying on memorization. My goal is to make complex topics clear, logical, and enjoyable.

Every lesson is fully personalized so that we spend more time on the topics you find most challenging while steadily building confidence for examinations.
Read more
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### Master Chemistry Calculations and Maximize Your Exam Marks

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🇲🇦 Arabic
قد يبدو القانون صعباً: مصطلحات تقنية، نصوص طويلة، وتفكير قانوني دقيق. هدفي هو جعله واضحاً وسهلاً، باللغة التي تناسبك: الفرنسية أو الإنجليزية.

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ستتعلم:

فهم المدني، الجنائي، قانون الأعمال، الدستوري...)
Use: الحالات العملية
استعمال المصطلحات القانونية باللغات الثلاث
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Chemistry Calculations Masterclass | IGCSE & IB

### Master Chemistry Calculations and Maximize Your Exam Marks

Do you understand Chemistry theory but struggle when you face calculation questions?

Do you lose marks because of **formula selection, unit conversions, mathematical steps, significant figures, or poorly structured working**?

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• Relative atomic mass and relative formula mass
• Molar mass calculations
• Balanced equations and stoichiometric calculations
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• Percentage yield and atom economy
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✓ Are preparing for IGCSE or IB Chemistry exams
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✓ Personalized instruction based on your current level
✓ Extensive calculation practice
✓ Exam-style questions and past-paper practice
✓ Identification and correction of recurring mistakes
✓ Guidance on showing working clearly to earn method marks
✓ Strategies for checking whether your answer is reasonable
✓ Focused preparation for IGCSE and IB examinations

**The goal is not simply to memorize Chemistry formulas — it is to develop the confidence and problem-solving skills to approach unfamiliar calculation questions successfully.**

Book a lesson and let's turn Chemistry calculations from a source of lost marks into one of your strongest areas.
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As a Franco-Belgian teacher, I offer private lessons in physics, chemistry and biology for secondary and higher levels. I specialize in secondary level up to 5th year Belgian.

I travel, if necessary, to your home in the Brussels region as well as in Walloon and Flemish Brabant, with a minimum course duration of 2 hours. With extensive experience, I offer numerous exercises to consolidate knowledge. Distance learning is also possible via platforms such as Skype, Facebook, etc. For students in France, lessons are done exclusively remotely.

Do not hesitate to contact me to organize your lessons according to your needs and availability. I am here to help you strengthen your skills in these subjects in an effective and personalized way. Courses tailored to your needs will allow you to progress quickly.
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Welcome to my Foundation Course in Science and Maths, specially designed for primary, secondary, and high school students in Amsterdam. This course aims to build a strong foundation in these critical subjects, ensuring students excel academically and develop a genuine love for learning.

My teaching approach is focused on making learning enjoyable and engaging. I incorporate interactive activities and hands-on experiments to bring Science and Maths concepts to life. By involving students in these dynamic learning experiences, I aim to transform abstract concepts into tangible understanding. Each session is thoughtfully designed to keep students interested and motivated, minimizing fatigue and maximizing retention.

I believe in simplifying complex topics, breaking them down into easy-to-understand segments. This approach helps students grasp and retain challenging concepts with ease. Techniques such as mnemonic devices, visual aids, and real-life examples are integral to my method, ensuring that formulas and concepts are not just memorized, but truly understood.

Regular assessments are conducted to track student progress and identify areas needing improvement. These tests also prepare students for their school exams, ultimately boosting their confidence. I understand the importance of keeping parents informed and involved in their child’s academic journey. That's why I provide weekly reports detailing their child’s progress, strengths, and areas for improvement. This continuous feedback loop ensures that parents are aware of their child’s development and can support their learning at home.

Encouraging words and positive feedback are integral to my teaching method. I strive to build students' self-confidence and to instill a love for learning through positive reinforcement. Setting achievable goals for each student, I celebrate their successes and motivate them to strive for excellence. This goal-setting approach not only drives academic success but also fosters a sense of accomplishment and self-worth.

As a tutor, my satisfaction comes from seeing my students excel and reach their full potential. My ultimate goal is to empower students with the knowledge and skills they need to succeed in Science and Maths. I am always available to support my students, offering additional help and resources as needed to ensure their success.

I foster an open environment where students feel comfortable asking questions, no matter how simple they may seem. This curiosity drives deeper understanding and encourages a proactive approach to learning. By incorporating games, puzzles, and interesting activities, I ensure that learning remains fun and engaging, keeping students excited about the subjects.

Join my Foundation Course in Science and Maths and watch your child develop a strong foundation, confidence, and a genuine love for these essential subjects. Let’s work together to achieve academic excellence and make learning a fun and rewarding experience. “Excel in Subjects, Soar in Confidence!”
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I offer clear, structured tutoring in Mathematics, Chemistry, and Physics, supporting students with both content mastery and exam success at Advanced Subsidiary and Advanced Level (AS and A-Level), for both Edexcel and Cambridge. My lessons focus on clear explanations and the core ideas behind each topic, so things actually make sense.

For exam preparation, I shift focus to exam technique: you'll learn how mark schemes work, how answers are graded, and how to phrase responses clearly so you don’t lose marks because of wording, even when you know the content.
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I hold a Doctorate in Pharmacy and 2 Masters degrees from the University of Paris V René-Descartes.
Since the beginning of my higher education, and since I established myself as a freelancer after 10 years of managerial career in the pharmaceutical industry, I have been used to regularly giving private lessons to pupils and students of all levels, Primary, Secondary and Higher, supporting them until they pass their exams.
The main disciplines in which I support students are essentially scientific.
The perspectives provided are transdisciplinary.
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Swiss-Focused Mathematics, Physics & Chemistry Tutoring – Passerelle, BMS, Berufsmaturität, Matura, Fachmaturität, QV & Adult Education

This class is designed for students and adult learners in Switzerland who want serious, structured and exam-focused support in Mathematics, Physics and Chemistry. The main focus is preparation for Passerelle, BMS, Berufsmaturität, Matura, Fachmaturität and QV/final apprenticeship exams, as well as support for learners in adult education who are returning to study, changing career direction or preparing for a new academic path.

What makes my tutoring different is the strong connection to the Swiss education system. I completed my master’s degree at a University of Applied Sciences in Switzerland and have many years of experience teaching students in Switzerland. This means my lessons are not generic international tutoring. They are built around Swiss school expectations, Swiss exam styles, Swiss curricula and the specific challenges faced by learners in Switzerland.

➜ Special focus on Passerelle preparation
The Passerelle is one of the most demanding Swiss pathways because it requires strong discipline, independent thinking and solid exam technique. I help students prepare systematically in Mathematics, Physics and Chemistry by working through the required theory, typical task types, old exams and exam-style practice.

➜ BMS and Berufsmaturität support
For BMS and Berufsmaturität students, I provide structured help in Mathematics, Physics and Chemistry, depending on the programme and exam requirements. We focus on building strong foundations, closing gaps and applying methods correctly in exam situations.

➜ Matura and Fachmaturität preparation
I support students preparing for Matura and Fachmaturität exams with clear explanations, relevant exercises and a structured learning plan. The lessons help students understand difficult topics, organize their knowledge and gain confidence before important assessments.

➜ QV / final apprenticeship exam preparation
Many vocational students need Mathematics, Physics or Chemistry for their QV/final apprenticeship exams, especially in technical, scientific, laboratory, healthcare or engineering-related fields. I help students connect theory with practical calculations and exam-style tasks.

➜ Adult education and returning learners
I also work with adult learners who are returning to education after a break, preparing for Passerelle, Berufsmaturität, Fachmaturität, QV or further studies. Adult learners often need a clear, respectful and efficient teaching style. I explain from the foundation upward, without judgment, and help rebuild confidence step by step.

➜ Mathematics, Physics and Chemistry taught with equal seriousness
The focus is not only Mathematics. Physics and Chemistry are also important, especially for Passerelle, Matura, Fachmaturität, technical BMS directions, QV exams and later studies. I explain formulas, concepts and calculations clearly so students understand the logic behind the subject.

➜ Old exams and Swiss-style practice
Where suitable, I use old exams, typical Swiss exam questions and realistic practice material. Students learn how questions are asked, how to recognize the correct method, how to structure their solutions and how to avoid common mistakes.

➜ Clear step-by-step method
Every task is approached with a simple structure: What is given? What is required? Which formula, law or method is suitable? Why does it apply? Then we solve the task step by step with all formulas, calculations and explanations.

➜ Why choose a Swiss-focused tutor?
Many tutors may know Mathematics, Physics or Chemistry, but Swiss exams often have their own wording, structure and expectations. Because I studied in Switzerland and have taught Swiss students for years, I can prepare learners in a much more targeted and relevant way.

➜ For serious students who want real progress
This class is ideal for students and adult learners who want to pass an important exam, improve their grades, close knowledge gaps, prepare for further studies or gain more confidence in Mathematics, Physics and Chemistry.

➜ Success-oriented preparation
My goal is to help students build real understanding, not just short-term memorization. With clear explanations, structured practice, old exam material and consistent preparation, students can develop the confidence and exam technique needed to perform at their best.
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Je propose un accompagnement personnalisé en mathématiques, sciences et travail scolaire pour les élèves de 7 à 17 ans. Les cours sont adaptés à l’âge de chaque élève, à son niveau scolaire, à son programme, à son rythme d’apprentissage et à ses besoins individuels.

Cet accompagnement peut servir de soutien scolaire régulier, d’aide aux devoirs, de renforcement des notions fondamentales, d’aide pour surmonter des difficultés spécifiques, de préparation aux contrôles et examens, ou simplement permettre à l’élève de gagner en confiance et en autonomie dans son travail.

Selon l’âge et le niveau scolaire de l’élève, les cours peuvent inclure :

¤ Mathématiques — calcul, fractions, pourcentages, géométrie, algèbre, équations, fonctions, trigonométrie, probabilités, statistiques et résolution de problèmes

¤ Sciences — sciences générales, matière et énergie, notions de base en physique et chimie, biologie, corps humain, environnement, ainsi que d’autres thèmes selon le programme scolaire de l’élève

¤ Aide aux devoirs et soutien scolaire — compréhension des cours, réalisation des exercices, révision des notions difficiles, préparation aux contrôles et développement de méthodes de travail efficaces

Mon approche pédagogique évolue avec l’âge de l’élève. Pour les plus jeunes, je cherche à rendre les mathématiques et les sciences intuitives et intéressantes grâce à des explications claires, des exemples concrets et une approche qui stimule la curiosité. À mesure que l’élève progresse, j’introduis progressivement un raisonnement plus structuré, des méthodes de résolution de problèmes et davantage d’autonomie.

L’objectif n’est pas simplement de terminer les devoirs ou de mémoriser des informations, mais d’aider l’élève à comprendre ce qu’il apprend, à développer son raisonnement, à gagner en confiance et à devenir progressivement plus autonome.

Je suis titulaire d’un doctorat en physique et possède une solide formation académique en mathématiques, physique et sciences expérimentales. J’adapte chaque cours au programme scolaire réel de l’élève plutôt que de suivre un programme fixe.

Les cours peuvent être dispensés en français ou en anglais, avec des explications en arabe lorsque cela peut faciliter la compréhension.
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French
The law can seem difficult: technical vocabulary, lengthy texts, demanding legal reasoning. My goal is to make it clear and accessible, in the language that suits you best: Arabic, French, or English.

This course is aimed at law students (Bachelor's, Master's), candidates for competitive exams and professionals who want to strengthen their foundations.

You will learn to :

Understanding the fundamental concepts (civil law, criminal law, business law, constitutional law, etc.)
Mastering the methodology: essay, case commentary, practical case
Use legal terminology in all three languages
Prepare effectively for your exams and competitions

Each session is tailored to your level, your program and your goals.

🇬🇧 English
Law can feel hard: technical vocabulary, long texts and demanding legal reasoning. My goal is to make it clear and accessible, in the language that suits you best: Arabic, French or English.

This course is for law students (bachelor's, master's), exam candidates and professionals who want stronger foundations.

You will learn to:

Understand core concepts (civil, criminal, business and constitutional law...)
Master legal method: essays, case comments and case studies
Use legal terminology in all three languages
Prepare effectively for your exams

Each lesson is tailored to your level, your syllabus and your goals.

🇲🇦 Arabic
قد يبدو القانون صعباً: مصطلحات تقنية، نصوص طويلة، وتفكير قانوني دقيق. هدفي هو جعله واضحاً وسهلاً، باللغة التي تناسبك: الفرنسية أو الإنجليزية.

هذا الدرس موجه لطلبة القانون (الإجازة والماستر)، والمترشحين للمباريات، والمهنيين الراغبين في تقوية معارفهم.

ستتعلم:

فهم المدني، الجنائي، قانون الأعمال، الدستوري...)
Use: الحالات العملية
استعمال المصطلحات القانونية باللغات الثلاث
التحضير الجيد للامتحانات والمباريات

كل حصة مكيفة حسب مستواك وبرنامجك وأهدافك.
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Are high school or university STEM courses feeling overwhelming? Whether you're aiming for A/A grades in your secondary school board exams or striving to master foundational university coursework, this class is structured to make complex concepts intuitive, manageable, and scoring-friendly.

Who This Class Is For?
Secondary / High School Students (Ages 12–18): Preparing for WAEC, GCSE, IGCSE, SAT, A-Levels, IB, or national high school exit exams.

Early University Undergraduates: Taking 100/200-level foundational courses in General Chemistry, University Physics, Calculus, Linear Algebra, or Applied Mathematics.

Students Needing Exam Prep or Score Recovery: Turning struggling scores into distinction-level performance with structured problem-solving tactics.
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Interactive K-12 Mathematics & Grades 7–12 Science Lessons

Is your child struggling with complex math formulas, needing homework support, or preparing for major science exams?

I am a TRCN-licensed Educator, Tutor Success Manager, and STEM Specialist with over a decade of experience helping students build confidence and achieve top grades. With a First Class / 2:1 degree in Information Technology, a Post Graduate Diploma in Education (PGDE), and advanced MSc IT coursework, I deliver structured, visual, and highly interactive online lessons customized to every student’s learning pace.

What We Cover in This Class:

Mathematics (Grades 1–12): Foundational arithmetic (CPA approach), fractions, word problems, algebra, indices, logarithms, coordinate geometry, linear graphs, quadratic equations, and trigonometry.

Sciences (Grades 7–12): Integrated/General Science, Physics (Scalar and Vector Quantities, Kinematics, Mechanics, Energy Transformations, Waves), Chemistry, and Biology.

How Lessons Are Taught:

Conceptual Clarity over Rote Learning: I break down abstract topics into easy-to-understand visual steps so students master the why behind every formula.

Interactive Digital Classroom: We utilize live interactive whiteboards (OpenBoard, Miro) and dynamic practice tools (Google Forms, Quizizz) to keep students fully engaged throughout every session.

Tailored Pace & Regular Feedback: Lessons are customized to match school curricula, reinforce class topics, support with homework, and provide parents with clear progress updates.

Whether your student needs early math intervention or advanced high school science mastery, I am here to make learning intuitive and rewarding.

Book a trial session today, and let’s unlock your student's potential in Math and Science!
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Are you stuck on a chapter, do you want to practice for the baccalaureate exam, or do you have some catching up to do? I can help you online, with a clear method.

MY JOURNEY
- Graduated with honors from the baccalaureate
- 4 years of studying fundamental computer science in Russia, which deepened my mathematical knowledge
- Background in software engineering
- Bachelor's degree in psychology (2015): it helps me understand how each student learns

MY METHOD
- First lesson: I diagnose your weaknesses and the real cause of the blockage
- Each course is built based on this diagnosis
- For each chapter: lessons, examples, then exercises of increasing difficulty
- Practice with typical baccalaureate exam questions and expected writing style
- Work plan adapted to your pace

RESULT
One of my students obtained the highest honors in the 2026 baccalaureate exam, with a score of 17 in Mathematics.

WHAT I WORK ON WITH YOU
Analysis (sequences, limits, differentiation, integrals), probability, geometry, and preparation for the baccalaureate exams.

Write to me indicating your level, your difficulties and your availability.
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Are you preparing for the Lebanese Baccalaureate and can follow the steps, but don’t know why they work? This class is for Grade 10 to 12 students who want to understand Math and Physics, not just memorize them.

I’m a PhD candidate in mechanical engineering with a Diplôme d’Ingénieur and 5 years of teaching experience. We start with a problem you find difficult, and I find exactly where your reasoning breaks. Then we work together, like colleagues, to understand the method and connect it to real life or to something you care about.

You will learn to:
Understand the reason behind each method
Solve unfamiliar questions on your own
Apply what you learn to past official exam questions
Feel calmer and more confident before exams
Make a clearer decision about your university path

AI can now solve almost any homework problem in seconds. But it won’t sit your exam for you. In this class, you learn how to study, how to think through new problems, and how to use tools like AI to reach your own goals.
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