Biology, Classes in Portuguese, European School, online classes

From 37 £ /h

Teacher with considerable experience teaching BIology in Portuguese. With particular interest in European School students. Dynamic classes to explain the content and also to carry out exercises. Adequate preparation to get a good grade in exams.

Extra information

I have a lot of experience in preparing students for exams.

Location

Online from Portugal

Age

Teenagers (13-17 years old)

Adults (18-64 years old)

Seniors (65+ years old)

Student level

Intermediate

Advanced

Duration

60 minutes

The class is taught in

English

Portuguese

Skills

Geology

Science

Biology

Availability of a typical week

(GMT -04:00)

New York

Online via webcam

Mon

Tue

Wed

Thu

Fri

Sat

Sun

00-04

04-08

08-12

12-16

16-20

20-24

Roman

5.0

(9)

Are you looking for professional guidance in Chemistry to improve your understanding and ace your exams? As a fully qualified international high school teacher with over 15 years of experience, I specialize in making complex Chemistry concepts simple and accessible. Whether you're in middle school, preparing for IGCSE or A-Levels, or tackling college-level Chemistry, I’m here to help you succeed.

By booking my Chemistry tutoring sessions, you’ll gain professional support in:
Basic Chemistry Concepts (Atoms, Molecules, and the Periodic Table)
Organic Chemistry
Inorganic Chemistry
Physical Chemistry
Chemical Reactions and Stoichiometry
Thermodynamics and Equilibrium
IGCSE Chemistry Test Prep
A-Level Chemistry Test Prep
SAT Chemistry Subject Test Prep
And more!

Why Choose My Tutoring?
Experienced and Qualified: With over 15 years of teaching experience, I’ve helped countless students build confidence and excel in Chemistry.
Tailored Lessons: Each session is customized to your needs, ensuring a personalized approach to learning.
Engaging Methods: I use interactive tools and real-world examples to make Chemistry both interesting and relatable.
Goal-Oriented Support: From mastering foundational concepts to acing exams, my focus is on helping you achieve your academic goals.

Convenient Online Learning:
My one-on-one online tutoring sessions are conducted via Zoom, providing a flexible and convenient learning experience from the comfort of your home. With cutting-edge tools and clear explanations, I’ll make Chemistry your strong suit.

Get Started Today!
Don’t let Chemistry challenges hold you back. Whether you’re looking for ongoing support or need to prepare for an important test, I’m here to guide you every step of the way. Contact me today to book your first lesson and take the first step toward mastering Chemistry!

Mavi

5.0

(9)

I am Mavi, a physics engineer working at an aerospace company.
I have been teaching private lessons at the primary, secondary, high school, and university preparatory levels for 11 years. I teach mathematics, physics, chemistry, and science. I have a good command of the curricula of IB, IGCSE, American, Hong Kong, and international schools.

Additionally, I hold the position of president at the Astronomy Society, where I foster my students' interest in astronomy and science beyond the lessons. I prepare the learning environment by incorporating experiments and exploration, moving away from rote education. I often bring experimental materials to class, aiming to make learning memorable through hands-on experiments.

As an educational mentor, I approach my students as if they were my siblings, valuing creativity. I have a deep passion for mathematics, physics, and science. I am dedicated to helping students understand and learn because life encompasses both SCIENCE and ART. The more people I can inspire to know, understand, and love mathematics, physics, and chemistry, the more proud I am.

Are you curious about how nature works?

Let's explore together!

Mohamed

5.0

(9)

Physics and chemistry are fundamental subjects for success in entrance exams for prestigious universities and selective programs. A solid grasp of the concepts, combined with effective methodology, is essential for achieving good results.

I offer specialized support to prepare for entrance exams to top universities and strengthen your scientific foundations. My goal is to help you fill in any gaps in your knowledge, consolidate your existing skills, and develop rigorous scientific reasoning.

✅ Review of essential concepts in physics, chemistry and mathematics
✅ Methodology for solving exercises and time management
✅ Intensive training with exercises and exam-style questions
✅ Personalized support tailored to your level and goals

As a young researcher passionate about science, I offer you a clear and structured educational approach to help you progress effectively and succeed in your competitions.

📩 Feel free to contact me for more information.

5.0

(9)

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**?

This masterclass is designed specifically for **IGCSE and IB Chemistry students** who want to build strong confidence in quantitative Chemistry and improve their exam performance.

I’m **Dr. Basil**, a Chemistry tutor with **10+ years of experience teaching international curricula**, including IGCSE, IB, GCSE, A-Level, and American Chemistry. With a background in Pharmacy and Quality Management, I use a systematic, step-by-step approach that helps students understand not only *how* to calculate the answer, but *why* each step is required.

### What You Will Master

**Core Quantitative Chemistry – IGCSE & IB**

• The mole concept and Avogadro's constant
• Relative atomic mass and relative formula mass
• Molar mass calculations
• Balanced equations and stoichiometric calculations
• Limiting reactants
• Percentage yield and atom economy
• Empirical and molecular formulae
• Gas volume calculations
• The ideal gas equation
• Concentration calculations
• Dilution calculations
• Titration calculations
• Reacting masses and volumes

**IB Chemistry – Additional Skills**

• Uncertainty calculations
• Percentage uncertainty and percentage error
• Significant figures and decimal places
• Data processing and evaluation
• Uncertainty in experimental results

### How We Work

Rather than simply memorizing formulas, you will learn a **repeatable method for solving Chemistry calculations**:

**Understand → Identify → Choose the equation → Substitute → Calculate → Check → Give the correct units**

We will work through progressively more challenging problems and use **IGCSE/IB-style exam questions and past papers** to develop speed, accuracy, and exam technique.

### This Masterclass Is Ideal For Students Who:

✓ Struggle with Chemistry calculations
✓ Understand the theory but cannot apply it to questions
✓ Make frequent calculation or unit-conversion errors
✓ Find stoichiometry and mole calculations difficult
✓ Need help with titration and concentration problems
✓ Want to improve their exam technique
✓ Are preparing for IGCSE or IB Chemistry exams
✓ Want structured practice and targeted feedback

### What You Can Expect

✓ Clear, step-by-step explanations
✓ 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.

Rania

5.0

(9)

I'd like to start by greeting everyone who is reading this and then briefly discuss the teachings I'm providing. Going to medical school is a major step, and while becoming a doctor may have been a big dream of yours, things unfortunately didn't turn out the way you had hoped. You didn't receive what you eagerly want following your bac. I'm here to tell you that earning your bac is just the first step on a longer journey. You have another opportunity to fulfill your lifelong ambitions. What role do I play in this? as someone who has been in your position and ultimately obtained what I want. We will have a customized plan that fulfills your needs, we will correct any unsuccessful methods and build new ones, and I will lead you through the program at every stage.

Chiwila

5.0

(9)

As a dedicated tutor with extensive experience in preparing students for standardized exams such as the SAT, GMAT, and SSAT, I understand the unique challenges that each of these tests presents. My approach is comprehensive and focuses on building a strong foundation in critical areas such as Mathematics, Quantitative Reasoning, Verbal Skills, and Analytical Writing. Each program I develop is tailored to the specific requirements of the exam, ensuring that students are well-prepared and confident on test day.

Having a deep understanding of the test formats and question types allows me to provide personalized strategies that target each student's individual strengths and weaknesses. I believe that every student has a unique learning style, and my goal is to enhance their test-taking skills while improving their time management. By fostering a supportive learning environment, I aim to boost students' confidence and empower them to achieve top scores.

My tutoring sessions incorporate a variety of effective methods, including real exam questions and timed practice tests. This hands-on approach allows students to familiarize themselves with the types of questions they will encounter, making the actual exam feel less daunting. I teach proven techniques for tackling even the most challenging problems, ensuring that students feel equipped to handle any question that comes their way.

One of the key components of my tutoring is helping students develop effective study habits. I provide guidance on creating a structured study plan that maximizes their preparation time and aligns with their personal goals. This structured approach not only keeps students on track but also helps them build a sense of accountability, which is crucial for success.

In addition to academic preparation, I also focus on the psychological aspects of test-taking. Many students experience anxiety leading up to exams, which can affect their performance. I teach relaxation techniques and mental strategies to help manage stress, allowing students to approach their exams with a calm and focused mindset. By addressing both the academic and emotional challenges of test preparation, I equip students with a well-rounded toolkit for success.

Feedback is an essential part of the learning process, and I make it a priority to provide constructive and actionable insights during our sessions. After each practice test, I conduct a thorough review of the results, highlighting areas for improvement while also acknowledging progress. This continuous feedback loop helps students understand their growth and keeps them motivated throughout their preparation.

My commitment to student success goes beyond just teaching content. I aim to inspire a love for learning and self-improvement in each of my students. Many of my former students have gone on to achieve their academic goals, securing places at prestigious universities and programs. Their success stories are a testament to the effectiveness of my tailored approach and the dedication I bring to each tutoring session.

If you're looking to master the SAT, GMAT, or SSAT with confidence, I invite you to book a session now. Together, we will develop a customized learning plan that suits your individual needs, ensuring that you are not only prepared to face the test but also equipped to excel and reach your highest potential. With my guidance and your commitment, we can achieve outstanding results. Let’s embark on this journey to success together!

Elisa

5.0

(9)

Hi everyone!

I offer personalized lessons in mathematics and physics for high school and university students. I love making difficult concepts clear and engaging, using my iPad like a digital blackboard to explain everything step by step. Together, we’ll prepare for exams, build confidence, and even have fun learning!
Please contact me if you have any questions.
Elisa

Robert

5.0

(9)

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.

Benson

5.0

(9)

Work with me in your IB journey. I have over 6 years of teaching experience with international students from Europe, Asia and America. I give home works and assignments on a regular basis.
Book a session with me in IB to get started. I interact with my students during lessons. After each lesson, i give students home works and assignment.

The International Baccalaureate (IB) offers several programs in Europe, including the IB Diploma Programme, the European Baccalaureate, and the IB's Primary Years Programme, Middle Years Programme, and Career-related Programme:

Kelvin

5.0

(9)

These lessons are best for; IB, IGCSE, GCSE, EDEXCEL, CAMBRIDGE CHECKPOINT and CAMBRIDGE O'LEVELS

PHYSICS contents :
•Measuring quantities
•Weight and Mass
•Density, Mass and Volume
•Motion
•Forces
•Light and it's properties properties
•Gas Laws
•Thermal Dynamics
•Momentum
•Machines
•Waves
•Sound
•Electromagnetic Spectrum
•Electricity
•Magnetic induction
•Transformer
•Radiation

Topics to be covered in CHEMISTRY are:
•Atomic structure
•Chemical Bonding
•Electronic configuration
•The Periodic Table and the Trends
•Extraction of Metals
•Thermal Decomposition
•Oxides
•Acids Bases and Salts
•Mole concepts
•Chemical Reactions
•Chemical Energetics
•Redox Reactions
•Non Metals
•Chemistry of the Environment
•Organic Chemistry

Topics to be covered in BIOLOGY are:
•Characteristics and classification of living organisms.
•Magnification of cells
•Types of Cells
•Cells and Solution Concentrations •Reproduction in Plants
of Animals
•Genetic Recombination
•Nutrition in Animals
•Plant Nutrition
•Heredity
•Anomalies in Animals and Plants
•Excretion in Animals
•Endocrine System
•Immune System
•Nervous System
•Adaptation of living organisms on their environment
•Reproduction in Animals
•Animal feeding levels

NOTE📌
Each class session takes 60 minutes duration. Within this time, a student should have COVERED ALL the class OBJECTIVES.
All students are required to ASK QUESTIONS for CLARIFICATIONS as the lesson PROGRESSES.
AIM: To help you pass Exams with ease.

Iskander

5.0

(9)

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.

Fairy

5.0

(9)

This chemistry tutoring course is designed to help students develop a strong understanding of chemistry, improve their problem-solving skills, and build confidence in their studies. It is suitable for students studying AP Chemistry, GCSE, IGCSE, IB, A-Level, and high school chemistry, whether they need regular academic support or focused preparation for an upcoming exam.

Lessons can cover a wide range of chemistry topics, including atomic structure, the periodic table, chemical bonding, chemical equations, stoichiometry, acids and bases, energetics, rates of reaction, equilibrium, organic chemistry, electrochemistry, and other topics based on the student's curriculum and learning needs.

Each lesson is personalized to the student's level and goals. I provide clear, step-by-step explanations and guide students through practice questions and problem-solving exercises rather than simply giving them the answers. We can work together on homework, difficult topics, past-paper questions, exam techniques, and areas where the student needs additional practice.

For exam preparation, lessons can focus on understanding key concepts, applying knowledge to different types of questions, identifying common mistakes, and developing effective strategies for answering examination questions.

Whether you are struggling with a particular chemistry topic, preparing for an examination, or simply want to strengthen your understanding and achieve better results, the lessons will be adapted to your individual needs and learning pace.

Online lessons are conducted via webcam in a supportive and interactive environment, allowing students to ask questions freely and work through problems together.

Suvindu

5.0

(9)

I am a Physics graduate from Universität Leipzig, currently pursuing my MSc in Physics. I grew up speaking English as my first language and have been teaching Physics and Maths for over five years to students at GCSE and A-Level. I enjoy breaking down complex topics into simple, logical steps and find it genuinely satisfying when a student finally understands something they have been struggling with. Outside of academics I am a sports coach, so I am used to adapting my approach to different people and skill levels.

Mohamed

5.0

(9)

Online Biology Teacher | Understand, progress, and succeed

Hello! I am a biology teacher and hold a Master's degree specializing in Management, Commerce and Distribution in the Agri-food sector, with university training in agri-food sciences and biology.

I offer online biology courses, particularly in cell biology, microbiology and biochemistry, with a simple, structured approach adapted to each student's level.

My goal is not just to help you memorize the course material: I help you understand biological mechanisms, make connections between concepts, and develop a genuine method of scientific reasoning.

🔬 What I propose:

* Clear explanations of difficult concepts
* Courses tailored to your level and objectives
* Preparation for tests and exams
* Solved exercises and practice
* Methods for learning and remembering better
* Personalized support throughout your progress
* Interactive online courses via Google Meet

Whether you need to catch up on difficulties, improve your results or simply better understand biology, we will move forward step by step, at your own pace.

📚 Biology becomes much easier when you truly understand what is happening.
Book your first session and let's see together how you can progress.

Hajn

5.0

(9)

What we'll work on:

-Fluency and natural conversation
-Pronunciation and clear speaking
-Grammar and vocabulary in real-life context
-Academic and Science-related English

How the class works

-A relaxed, judgment-free space where mistakes are part of learning
-Most of the class time is spent speaking, not listening
-Topics chosen around your goals, such as work, school, travel, or daily life
-Clear, kind feedback on the mistakes that matter most
R-egular progress check-ins so you can see your improvement

Who this class is for

-Teens and adults from beginner to advanced
-Shy or nervous speakers
-Students and professionals who want to improve their English for school, work, or interviews
-Learners preparing for the IELTS

In our first class, we'll chat, check your level, and set clear goals together. There's no pressure, just a friendly conversation to help you start.