BIOLOGY/CHEMISTRY CLASSES E.G, SECONDARY, PRIMARY, EXAM PREPARATORY CLASSES, OCR/IGCSE/AQA, GCSE.

From 48 C$ /h

Homeostasis is one of the topics one should be expecting in examinations like IGCSE, GCSE, WASSCE, GCE, NECO, SAT.

Osmoregulation (homeostasis)-in unicellular organism is ensured by the use of contractile vacuole. The main organs involved in homeostasis in multicellular organisms include kidney, liver, skin, ductless glands (hormones) and the brain which has the overall control of the homeostatic process in the body.
The regulation of homeostasis depends on three mechanisms:
1. Receptor 2. Control Centre 3. Effector.
The entire process continuously works to maintain homeostasis regulation.
1. Receptor: the receptor is the sensing component responsible for monitoring and responding to changes in the external or internal environment.
2. Control Centre: The control centre is also known as the integration centre. It receives and processes information from the receptor.
3. Effector: The effector responds to the commands of the control centre. It could either oppose or enhance the stimulus.

Biological systems like those of your body are constantly being pushed away from their balance points. For instance, when you exercise, your muscles increase heat production, nudging your body temperature upward. Similarly, when you drink a glass of fruit juice, your blood glucose goes up. Homeostasis depends on the ability of your body to detect and oppose these changes.
Roles of Pancreas and Liver in Homeostasis.
During a meal, the pancreas will secrete insulin and suppress glucagon, causing the liver to store glucose as glycogen.
Alternatively, when blood sugars are low, the liver can convert glycogen into glucose through a process known as glycogenolysis.
The pancreas controls the concentration of glucose in the body by producing the hormones insulin and glucagon which stimulate the liver. Insulin and glucagon are chemical hormones messengers.

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Location

Online from Nigeria

Age

Children (7-12 years old)

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Adults (18-64 years old)

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Duration

45 minutes

60 minutes

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120 minutes

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English

Skills

High school entrance prep

Biology

Chemistry

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Biology and Psychology teaching classes for students in schools and those who are preparing to write both internal and external exams.

58 C$ /h

My Biology class would expose my students to better ways of understanding Biology better and make my students ace their examinations and progress.

Learning Biology under my tutelage would be a great experience.

I specialize in teaching IGCSE, WAEC, OCR, GCSE and so on.

BIOLOGY CLASSES: A-LEVEL BIOLOGY, ORDINARY-LEVEL BIOLOGY, COLLEGE STUDENTS

41 C$ /h

Biology is an interesting subject, especially when you are being tutored by a competent teacher like me.
I am a qualified and a well trained Biology teacher.
I will teach you well until you achieve your goal of excelling in the field of Biology.
I teach with fun!

Kevin

5.0

(5)

► Online Mathematics, Physics & Chemistry Tutor from Switzerland
► GCSE, IGCSE, A-Level, IB & International School Support
I completed my Master’s degree in Business Information Systems at a Swiss University of Applied Sciences, where my main academic focus was strongly connected to Mathematics, Physics, analytical thinking and problem-solving. This technical background shaped the way I teach today: clearly, logically and with a strong focus on real understanding.
► EXTENSIVE EXPERIENCE WITH GCSE, IGCSE, A-LEVEL, IB & INTERNATIONAL SCHOOL STUDENTS
With many years of teaching experience, I have successfully supported students from prestigious schools and highly demanding academic programmes, helping them strengthen their understanding, master exam techniques and achieve excellent progress in Mathematics, Physics and Chemistry.

► Exam Preparation & Academic Support

► GCSE & IGCSE Mathematics, Physics and Chemistry
I help students build a strong foundation through clear explanations, topic-by-topic revision and carefully selected exam-style practice. My lessons focus on understanding the core ideas, improving calculation skills, avoiding common mistakes and preparing students confidently for their final exams.

► A-Level Mathematics, Further Mathematics, Physics and Chemistry
A-Level subjects require deeper thinking, strong problem-solving ability and excellent exam technique. I support students with advanced concepts, structured revision, challenging practice questions and university preparation, especially for demanding fields such as Engineering, Medicine, Computer Science, Economics and Natural Sciences.

► International Baccalaureate — IB Mathematics, Physics and Chemistry
I provide structured support for both Standard Level and Higher Level students. My focus is on deep conceptual understanding, clear mathematical reasoning, scientific explanation and strong exam performance. Students learn how to approach complex IB-style questions with confidence and precision.

► International School Programmes
I support students following international, bilingual and private school curricula. Since every school can have slightly different expectations, I adapt my teaching to the student’s syllabus, textbook, teacher requirements and exam format, ensuring that the lessons are directly useful for school success.

► University & Foundation Courses
For older students, I offer support in Mathematics, Physics, Chemistry, Statistics and technical modules. I help students understand difficult theory, work through assignments, prepare for exams and strengthen the analytical skills needed for university-level study.

► How I Teach
► I focus on understanding, not memorisation.
I explain concepts step by step until the student truly understands why a method works.
► I adapt every lesson to the student.
Every student learns differently, so I adjust my teaching style, pace and examples individually.
► I simplify difficult topics.
Complex problems become easier when they are broken into clear, logical steps.
► I close knowledge gaps.
I identify missing foundations and rebuild them carefully so the student gains confidence.
► I train exam technique.
Students learn how to read questions properly, avoid common mistakes and solve problems under exam conditions.

► 100% COMMITMENT TO YOUR SUCCESS
With clear guidance, focused practice and a personalized learning strategy, I am fully committed to helping you understand deeply, improve consistently and achieve your strongest possible results.

► My Goal
My goal is not only to improve grades, but to help students become confident, independent and motivated learners. With the right guidance, Mathematics, Physics and Chemistry become clear, logical and much easier to master.
► Subjects: Mathematics, Physics, Chemistry
► Levels: GCSE, IGCSE, A-Level, IB, International School, Foundation Courses, University Modules
► Focus: Understanding, confidence, exam success and long-term academic progress.

Raef

5.0

(5)

The math, physics, chemistry, and SVT courses of the French or Swiss program of maturity or university are done by either in-depth explanations or by a quick course and summary of essential needs according to the case of each student supported by exercises from the book or evaluations and exams from other high schools.
A special follow-up program to better prepare for the Terminales session.
So that I can give support courses for the 1st year of university in Mathematics - Analysis - Matrices - Statistics - Algebra - Geometry - Physics - Mechanics - Electricity - Chemistry - Organic Chemistry - Biology, Geology.
My experience is too long and for years I have learned methods for each case and for each student to fill in their gaps with the best results of Excellent, Very Good, and Good as mentioned by my students.
I can also help students to better prepare for courses and support them to better prepare for the duties of CNED in science subjects.
Guaranteed response within minutes up to 10 hours maximum.

Constanza

5.0

(5)

If you're looking for an organised and professional teacher to help you achieve your academic goals, look no further! The IB science subjects can be extremely difficult to go through on your own, and I'll be glad to use my experience to help you out.

A couple of things I like to do:

- Initial test or interview to assess your level.
- Use Notion as a platform to share all my resources.
- Use mock papers that lay out the exercises JUST like in the real exams, so you will feel really prepared.
- I give homework when appropriate.
- I provide any kind of mentoring and college counseling. People who study Biology and Chemistry usually want to pursue a clinical career-- and that is a complex process!

Fawzi

5.0

(5)

I am a trained French teacher with a degree in linguistics. I have been teaching since 2012 and I support candidates in improving their French and preparing for official exams.

The preparation is fully tailored to your level, the date of your exam and the skills you need to strengthen.

We are working on the different challenges:
- listening comprehension;
- understanding of written texts;
- written production;
- oral production.

The goal is not only to improve your French, but also to understand what examiners expect and to learn how to respond effectively to exam instructions.

Depending on your needs, we can work on methodology, organization of ideas, argumentation, grammar, vocabulary, time management and correction of written or oral productions.

Exercises and practice topics may be offered between lessons to track your progress and identify areas that require more work.

As the exam approaches, we can also carry out simulations under conditions close to the real test, particularly for oral production.

Before we begin, simply tell me the diploma and level you are preparing for, the scheduled date of the exam, and the difficulties you wish to work on as a priority.

Amin

5.0

(5)

Struggling with math, physics, or chemistry? You're not alone — these subjects are hard, and classroom explanations are rarely enough.
I offer personalized tutoring for middle school, high school, and early university students following the French Mission curriculum, the Moroccan national curriculum, or the international baccalaureate.
Topics covered:

Mathematics: algebra, geometry, calculus, trigonometry, probability
Physics: mechanics, electricity, optics, thermodynamics
Chemistry: organic, inorganic, stoichiometry, reactions

My approach:
I don't re-explain the textbook — I identify exactly where your understanding breaks down and fix it from there. Each session is built around your specific difficulties, not a preset program.
I completed CPGE (Classes Préparatoires aux Grandes Écoles) in Mathematics and Physics before graduating as a State Engineer — I know these subjects at an advanced level and I know where students typically get lost.
Individual and small group sessions available. Online (worldwide) in French, Arabic, or English.

Magdi

5.0

(5)

Are you an IB Chemistry HL or SL student aiming for a higher grade and greater confidence in exams?

This course provides **structured, exam-focused IB Chemistry tutoring** designed to strengthen your understanding, improve problem-solving skills, and prepare you effectively for IB assessments.

With **10+ years of experience teaching international Chemistry curricula**, I help students move beyond memorizing content and learn how to apply Chemistry accurately to unfamiliar questions and IB-style problems.

### What We Cover

**IB Chemistry HL & SL**

* Complete syllabus coverage and targeted revision
* Concept clarification and deeper understanding
* Stoichiometry and quantitative calculations
* Organic Chemistry and reaction mechanisms
* Energetics and thermochemistry
* Kinetics
* Equilibrium
* Acids, bases and pH
* Redox reactions and electrochemistry
* Data-based and unfamiliar exam questions
* Past-paper practice and mark-scheme analysis
* Common mistakes and examiner expectations
* Exam timing and answer-structuring strategies

### IB Chemistry IA Support

Students can also receive structured guidance with their **Internal Assessment**, including:

* Developing and refining a suitable research question
* Discussing experimental design and methodology
* Data processing and uncertainty analysis
* Interpreting results
* Evaluation and conclusion
* Improving scientific reasoning and communication

IA support focuses on **guidance and feedback**, helping students understand how to develop and evaluate their own work.

### My Teaching Approach

Lessons are **structured, focused and personalized** according to the student's current level and target grade.

Students learn to:

* Understand Chemistry rather than simply memorize it
* Apply concepts to unfamiliar situations
* Solve calculations accurately and systematically
* Interpret graphs, tables and experimental data
* Structure answers according to IB expectations
* Learn from mark schemes and past-paper questions
* Identify and correct recurring mistakes
* Build confidence under exam conditions

Each student receives a **personalized study plan** based on their strengths, weaknesses, upcoming assessments and target grade.

Whether you are struggling with a particular topic, preparing for exams, or aiming to move from a good grade to an excellent one, the lessons are tailored to your specific needs.

Robert

5.0

(5)

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.

Rania

5.0

(5)

The SAT exam is one of the major steps you need to go through in your life; it's a step that is going to determine your college, your university, and your future as a whole. As with a lot of things in life, it can be a hard step, and there is no shame in asking for help. Here comes my role: I will help you overcome your problems and your difficulties. My job here is to help you achieve your desired results and unlock your potential. Simply put, we will go through every lesson, every unit, and every chapter. We will understand the concept of each lesson, with clear examples to follow. After each one, you will be tested, and after finishing your program, you will be tested on it. That's my plan for my students, so if you are interested, you can easily contact me.

Prashil

5.0

(5)

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!”

Ignacio

5.0

(5)

Course Description:

This course is designed to reinforce and improve your knowledge in Mathematics, Physics and Chemistry, and English. Through clear explanations, practical exercises, and real-world examples, you will learn to solve mathematical problems, understand the principles of Physics and Chemistry, and improve your English skills.

What will you learn?

Mathematics: Algebra, functions, geometry and problem solving.

Physics and Chemistry: Key concepts, formulas and applications in everyday life.

English: Grammar, vocabulary and conversation to improve your communication.

If you are looking for support in these subjects to improve your grades or prepare for exams, this course is for you!

Dr.

5.0

(5)

I offer personalized online tutoring (via teams , Zoom or Google Meet) and in-home sessions for students of all ages and levels. My lessons are designed to be interactive, creative, and tailored to each learner’s needs, ensuring active engagement and lasting understanding.

With a Ph.D. in Science and 10+ years of teaching experience, I provide flexible session lengths (1-2 hours) and adapt my methods—whether through discussions, multimedia, or hands-on examples—to make complex topics accessible and exciting. Let’s make learning both effective and enjoyable!

Course Subject:
Biology: Biotechnology, Biochemistry, Immunology, Cell and Molecular Biology, Molecular Genetics, Anatomy and Physiology of animals and plants

Chemistry—comprehensive coverage of all five core disciplines to ensure a holistic understanding of the molecular world.

Organic Chemistry: Reaction mechanisms, stereochemistry, synthesis planning, and nomenclature.

Inorganic Chemistry: Coordination chemistry, periodicity, molecular symmetry, and bio-inorganic systems.

Physical Chemistry: Thermodynamics, quantum chemistry, kinetics, and electrochemistry.

Analytical Chemistry: Spectroscopy (NMR, IR, UV-Vis), chromatography, method validation, and data interpretation.

Biochemistry: Enzyme kinetics, metabolic pathways, protein structure, and bioenergetics.

Course Level: Tailored for High School (IB/AP/A-Levels), University/College (Undergraduate & Graduate), and Adult Learners seeking to strengthen fundamentals or prepare for competitive exams.

Location of the Lessons: Live, interactive, and high-quality sessions delivered online—learn from home in the Netherlands or anywhere worldwide, Face to face- at your home or at my place.

Iskander

5.0

(5)

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.

Javier

5.0

(5)

Personalized tutoring for all levels

Do you need help to better understand a subject, prepare for an exam, organize your studies, or simply gain confidence in your learning?

I am a university professor and educational psychologist with extensive teaching experience, and I offer personalized support classes for students of all levels.

My goal is not simply to help you memorize content, but to help you understand what you study, develop learning strategies, and gain autonomy and confidence.

Every student learns differently. That's why classes are tailored to your level, pace, needs, and goals.

🎓 How can I help you?
Understand and reinforce academic content.
Prepare exams and assessment tests.
To resolve specific doubts and difficulties.
Improve written and oral expression.
Organize your studies and plan your academic work.
Develop learning techniques and strategies.
Prepare papers, presentations, and projects.
Improve reading comprehension and analytical skills.
Retrieve content and consolidate knowledge.
Gain greater confidence and autonomy as a student.
🧠 An approach based on how each student learns

My training as an educational psychologist allows me to pay special attention not only to what you need to learn, but also to how you learn best.

We will work in a practical, clear and progressive way, identifying the difficulties and looking for strategies that really work for you.

The classes are aimed at both students who need academic support and those who wish to improve their performance and achieve more ambitious goals.

💻 Online classes, personalized and adapted to each student.

If you want a teacher who combines university experience, psychopedagogical training and a personal touch, I'd be happy to help you achieve your academic goals.

Personalized Tutoring for All Levels

Do you need help understanding a subject, preparing for an exam, organizing your studies, or simply becoming more confident in your learning?

I am a university professor and educational psychologist, with extensive teaching experience, and I offer personalized tutoring for students of all levels.

My goal is not simply to help you memorize information, but to help you understand what you are studying, develop effective learning strategies, and become a more confident and independent learner.

Every student learns differently. That is why each class is adapted to your level, pace, needs and individual goals.

🎓 How can I help you?
Understand and reinforce academic content.
Prepare for exams and assessments.
Resolve specific questions and learning difficulties.
Improve written and spoken communication.
Organize your studies and plan your academic work.
Develop effective study and learning strategies.
Prepare assignments, presentations and projects.
Improve reading comprehension and analytical skills.
Review and consolidate previously studied material.
Build greater confidence and independence as a learner.
🧠 A learning approach adapted to you

My background as an educational psychologist allows me to focus not only on what you need to learn, but also on how you learn most effectively.

We will work in a practical, clear and structured way, identifying difficulties and developing strategies that genuinely work for you.

These classes are suitable both for students who need academic support and for those who want to improve their performance and achieve more ambitious academic goals.

💻 Online classes, fully personalized and adapted to each student.

If you are looking for a teacher who combines university teaching experience, educational psychology expertise and a supportive, student-centered approach, I would be delighted to help you achieve your academic goals.

Munzir

5.0

(5)

Hi, I'm Munzir, an O/L Chemistry tutor from Sri Lanka.
I am a B.Sc. undergraduate in Chemistry at the University of Sri Jayewardenepura, Sri Lanka, with approximately 4 years of experience teaching O/L Chemistry.

I currently teach London O/L Chemistry and have experience supporting students following Cambridge and Edexcel curricula.

My teaching focuses on simplifying difficult Chemistry concepts, identifying students' weak areas and developing their ability to answer examination-style questions.

I am particularly interested in supporting students preparing for Cambridge and Edexcel O/L examinations through structured revision, past-paper practice and exam-focused guidance.

I am available for online tutoring and home visits and can adapt lessons according to each student's current level and learning needs.

Hina

5.0

(5)

Anatomy is the subject where you can study for hours and still go blank on exam day. The problem usually isn't effort. It's that the material was never made to stick.

I'm Hina, a final-year Doctor of Physiotherapy (DPT) candidate, and I tutor anatomy, physiology, neuroanatomy, neurophysiology and biology one-to-one. You send me your syllabus, lecture slides or notes before we meet, and I build each lesson from your own course material, so we cover exactly what your exam covers and nothing twice.

Every topic gets a memory hook: a short mnemonic or diagram you can still recall under pressure. I draw live during the lesson and test you out loud, so we find the gaps in the session, not in the exam hall.

One of my students, a medical student at the University of Milan, had failed six subjects, including anatomy, neuroanatomy and physiology. After two months of lessons, she passed all six.

I teach students from school level (O Level, A Level, FSc, MDCAT) through MBBS and university health-science courses, in English or Urdu, whichever makes it click.

Start with a free 30-minute trial. Tell me what's going wrong and you'll leave with a study plan either way.