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

From 48.3 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)

Teenagers (13-17 years old)

Adults (18-64 years old)

Seniors (65+ years old)

Student level

Beginner

Intermediate

Advanced

Duration

45 minutes

60 minutes

90 minutes

120 minutes

The class is taught in

English

Skills

High school entrance prep

Biology

Chemistry

Availability of a typical week

(GMT -04:00)

New York

Online via webcam

Mon

Tue

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00-04

04-08

08-12

12-16

16-20

20-24

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

58.29 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

41.64 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

(4)

► 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

(4)

The math, physics, chemistry, and SVT courses of the Swiss Maturity and Gymnasium program or French programs are given 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.
Special program for Maturité and Terminale students.
As well as (International and European Schools in English).
The same goes for the start of the ECUS and EPSU academic year where the pupil can follow a complete preparation.
As well as for 1st and 2nd-year university students, can take courses in Analysis - Matrices - Statistics - Algebra - Geometry - Physics - Mechanics - Electricity - Chemistry - Organic Chemistry - Biology and 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.

Aneeka

5.0

(4)

I am currently a Medical Student and have completed a degree in Biomedical student at Cardiff University. I am warming friendly, willing to help and enthusiastic person. I put all my effort in to something I do. I relish the opportunity to help those who are struggling or who wish to go the extra mile to deepen their knowledge of their chosen subject. f you would like some support for your child im here to help at any age up-to A level
I can provide highly planned, engaging, student-centred lessons that are catered to each individual's needs, and I can be as flexible as you'd like with timings and prefer to go on Skype.

I can provide references. I have previously done work in nurseries and primary schools. I also have taught small children Arabic and religious teachings. I also Have a DBS.

Please don't hesitate to get in touch with me at any time

Mohamed

5.0

(4)

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.

Bibek

5.0

(4)

Hi! I am a Ph.D. researcher in Physics at the University of Cologne, Germany. Recently, I graduated from the University of Groningen in the Netherlands with a Master's degree in Nanoscience (w/ cum Laude). I offer private tutoring for high school and/or university-level students so they can understand the fundamental concepts and excel in their studies. I have teaching experience of 5+ years in Physics and Mathematics to both high school and university-level students.

I have expertise in the following courses:
0. All high school topics

1. Classical Physics (Newtonian mechanics, linear motion, rotational motion, collision theory, angular momentum, and many more)

2. Modern Physics (Electrostatics, Maxwell's law, motion of electrons in electric and magnetic fields, Quantum theory of light, Compton scattering, photoelectric effect, and many more)

3. Optics (Ray optics, wave mechanics, reflection and refraction, Fresnel's law, polarizer, matrix optics, interference, diffraction, and many more)

4. Quantum Mechanics (Schrödinger equation, Heisenberg uncertainty principle, commutation relation, the addition of angular momentum, matrix representation, density matrix, and many more)

5. Solid-state Physics (Crystal structure, wave diffraction, and the reciprocal lattice, crystal vibrations (phonons), the density of states, semiconductor physics, pn junction, transistors, and many more)

*Note that the sessions will be held online (via Discord/Zoom/Microsoft Teams).

Constanza

5.0

(4)

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!

Robert

5.0

(4)

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.

Prashil

5.0

(4)

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!”

Mahmoud

5.0

(4)

Are you a postgraduate student or looking to write a scientific research paper/review?
This course equips participants with the skills to critically revise scientific manuscripts for clarity, rigor, and adherence to publication standards. Focused on chemistry-related fields, such as organic chemistry, natural products chemistry, and/or analytical chemistry. It addresses the unique demands of sub-disciplines while fostering interdisciplinary competence. Participants will learn to refine manuscripts for pre-submission and post-peer review stages, ensuring readiness for high-impact journals.
This course will include, but not be limited to:
- Enhance logical flow and impact like (abstract, introduction, methods, results, discussion, conclusion).
- Develop proficiency in journal-specific formatting, including figures (e.g., ChemDraw), references, and supplementary materials.
- Strategize responses to reviewer comments, balancing revisions with study integrity.
- Utilize software for references (EndNote).

Skills Gained:
- Critical evaluation of scientific content and structure.
- Enhanced technical writing and data visualization.-
- Proficiency in navigating submission workflows and ethical guidelines.

Outcome:
Participants will emerge capable of transforming drafts into polished, publication-ready papers, effectively communicating research to the global scientific community.

Dr.

5.0

(4)

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.

Inês

5.0

(4)

Mastering mathematics and science at lower secondary level (LWS/KS3) is crucial for success in IGCSE.

I explain science and maths concepts easily, so students truly understand the underlying causes and never have to memorise a formula again.

Judi

5.0

(4)

I’m a Mechanical Engineering student with a strong background in chemistry and problem-solving. I help students understand chemistry in a simple and structured way by breaking down difficult concepts into clear steps. My lessons focus on building real understanding rather than memorization, helping students improve confidence, homework performance, and exam results. I can assist with topics such as chemical reactions, stoichiometry, balancing equations, atomic structure, and general high school chemistry while adapting lessons to each student’s pace and needs.

Online lessons available with flexible scheduling.

Archita

5.0

(4)

This class is designed for students who want to improve their understanding of Biology and Chemistry in a simple and interactive way. Whether you need help with school lessons, exam preparation, homework, or understanding difficult concepts, the classes will be adapted to your level and learning style.

Topics can include cell biology, genetics, human physiology, organic chemistry, chemical reactions, biochemistry, and more. Lessons focus on clear explanations, practice questions, and building confidence in science subjects.

Classes are suitable for beginners as well as intermediate students who want extra support or deeper understanding.

Ken

5.0

(4)

I offer my services for personalized private lessons tailored to each student's needs in order to fill gaps in knowledge and boost results.
With 3 years of experience in mentoring, I have been able to get involved, with excellent results, in the "cordées de la réussite" program at ENCPB in PC chemistry, mentor students preparing for entrance exams to the top engineering schools (X, ENS, ESPCI, Mines, Centrale) in math, physics and chemistry, help medical students in organic chemistry, and tutor in physics and chemistry at the Lycée Louis-Le-Grand and at ENCPB in PCSI.
I am currently in my final year of engineering school at ESPCI Paris-PSL, the third-ranked engineering school in France in 2026 and the first in academic excellence, and I attended a PCSI/PC* preparatory class at the Lycée Louis-Le-Grand. I am available during the week as well as on weekends.
I offer tutoring for students from high school (grades 10-12), university preparatory classes, and up to the third year of university (BAC+3), in math, physics, and chemistry. Feel free to contact me if you're interested; I'm responsive and committed to helping every student achieve their goals.

Khalid

5.0

(4)

I offer online tutoring from the first year of middle school to the TCS (Technical Center for Science), providing support in physics and chemistry with clear explanations, targeted exercises, and a teaching approach tailored to each student. The goal: to understand, succeed, gain confidence, and progress.