Chemistry, biochemistry, biology, cooking, business administration

From 133 C$ /h

In this class you will learn how the basics of science ranging from chemistry to biology.

I also teach the basics of business administration to help you run a business or organisation more efficiently.

Lastly I teach how to cook Caribbean, African, Chinese and Indian cuisines.

Extra information

Bring laptop, pen and a notebook

Location

Online from Zambia

Age

Children (7-12 years old)

Teenagers (13-17 years old)

Adults (18-64 years old)

Seniors (65+ years old)

Student level

Beginner

Intermediate

Duration

60 minutes

The class is taught in

English

Skills

Science

Cooking

Business administration

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

Tim

4.8

(15)

Need help with math and science (physics, chemistry, etc.)? As a 33-year-old civil engineer, I'm happy to help! I'll learn at your own pace, using plenty of examples to illustrate the material. I have years of experience teaching both simple and complex subjects.

The lessons run as follows. First of all, together we look for the student's biggest stumbling blocks. These can be related to the subject matter as well as to the study method. From there, I continue to work at the pace of the student and encourage them to ask as many questions as possible. I also give them tips and tricks, and improve their working methods where necessary. During the lesson I give many examples to make the subject matter more interesting and we solve exercises together. Once the student has mastered the exercises from the lesson, I give some more challenging exercises to also test on the deeper understanding of the subject matter. In this way I try to optimally prepare the student for his / her test or exam.

However, learning should also be enjoyable. That is why I always strive for a good relationship with the student through a spontaneous and positive approach. I am also very patient. All this lowers the barrier to ask questions and improves the student's learning process.

Are you interested? Do not hesitate to contact me!
See you soon!

Tim

Magdi

4.8

(15)

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 Magdi**, 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.

Chiwila

4.8

(15)

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!

Michael

4.8

(15)

Expert Science & Chemistry Tutor – IGCSE | A-Level | IB | KS3
Online & In-Person Lessons Available in Madrid.

Are you looking for a dedicated, experienced, and results-driven science tutor to help you or your child excel in school or exams? Whether you're preparing for IGCSE, A-Level, IB, or Coordinated Sciences, I’m here to help you achieve your goals.

✅ Subjects Offered:

Chemistry (IGCSE, A-Level, IB, Edexcel, AQA, Cambridge)

Coordinated Sciences (Double Award)

General Science (KS3 & KS4)

Exam preparation and lab skills (Paper 3/ practical-based support)

🧪 About Me:
I’m a qualified and passionate science teacher with over 10 years of experience teaching in international schools across Spain, the UK, and the Middle East. I currently work at a leading international school in and specialise in Chemistry and Coordinated Sciences.

🌟 What You’ll Get:

Personalized 1:1 support tailored to your learning style

Exam-focused strategies to boost confidence and grades

Simplified explanations of complex topics

Friendly, patient, and engaging lessons

Help with homework, projects, revision, and lab reports

📍 Location:

Online worldwide via Zoom/Google Meet

In-person in Madrid, flexible hours available

🎯 Who is this for?

Students aiming for top grades in science and chemistry

Those who need extra support understanding key concepts

IB or A-Level students needing help with Internal Assessments or lab work

📩 Message me today to book your first lesson or ask any questions. Let’s boost your science skills and exam success together!

Moumita

4.8

(15)

If you don't like algebra or science scares you then I can tell you the secret of learning these topics with ease. I curate my teaching style to the individual student's needs, such as by giving real life examples or doing small experiments to help understand the topics better.
With multiple examples during the class, daily revision, weekly tests and regular feedback I help students to achieve their desired goals. I can guarantee great results.

Dorcas

4.8

(15)

Passionate and dedicated teacher with five years of experience fostering an engaging and inclusive learning environment. I'm committed to promoting student success through personalized instruction, differentiated learning strategies, and active student engagement. Proven track record of implementing innovative teaching methods and achieving measurable improvements in student academic performance.
I offer home tution services for igcse and other curricular.
I tutor learners in both lower and upper grades English, Maths and Science and other subjects if the need be.
Duration per session is an hour and above.

Vincent

4.8

(15)

Science includes all natural science subjects; PHYSICS, CHEMISTRY, BIOLOGY and MATHEMATICS . PHYSICS deals with MECHANICS of OBJECTS while CHEMISTRY deals with CHEMICAL CHANGES of different REACTIONS.On the other hand BIOLOGY is the study of LIFE PROCESSES and different MATERIALS that SUPPORTS LIFE.Whereas , MATHEMATICS is a subject that explains DIFFERENT CONCEPTS using NUMBERS and VARIABLES.

Dr.Ibrahim

4.8

(15)

This course introduces students to the fundamental concepts, functions, and practices of management within organizations. Emphasizing both theory and real-world applications, the course covers the core management functions: planning, organizing, leading, and controlling. Students will explore topics such as strategic decision-making, organizational structure, leadership styles, communication, team dynamics, and performance management. Through case studies, discussions, and practical activities, students will gain a foundational understanding of how effective management contributes to organizational success. This course prepares learners for further studies in business and management, as well as entry-level leadership roles.

Dr.Ibrahim

4.8

(15)

Business Administration (MBA) is a comprehensive, advanced-level program designed to develop strategic thinking, leadership skills, and practical expertise across all major areas of business. Core subjects include finance, marketing, operations, human resource management, organizational behavior, economics, and business strategy. Students will analyze real-world business challenges, engage in case studies, and participate in collaborative projects to build decision-making and problem-solving abilities. The program emphasizes innovation, global perspectives, and ethical leadership, preparing graduates for executive roles, entrepreneurial ventures, and dynamic career opportunities in diverse industries.

Kelvin

4.8

(15)

Hi, Tutor Kelvin here your Maths Tutor.

MATHS;
Many students fail Maths because of already defeated mindset about Maths and unsharpened analytical skills.
As an experienced Tutor, my aim is to bridge in that gap.That's to make sure no student must ever be troubled with a concept that has a solution .

Topics to be covered in MATHEMATICS are:
•Types of Numbers
•Algebra
•Sets
•Indices
•Fractions
•Functions
•Trigonometry
•Equatioms
•Probability
•Transformations
•Geometry
•Proportions
•Exponential and Decay Curves
•Distance time Graphs
•Mensuration
•Properties of a Circle
•Statistics

Q.Why you will love Maths after the lessons?
1.I will help break down concepts to the level of your understanding.
2.I will make sure that I explain all the steps required per topic.
3.At the end of the day, I could've made sure you know and understand the requirements for each question.This will be achieved by exposing you to final examination papers.
4.I make sure I teach all the topics based on the syllabus.
5.I also share useful study tips to make you excel academically.

NOTE; I am a straight forward Tutor who strives to bring out the best in every student on time.I am always innovative by using interactive mode of Teaching Methodology.

I use well structured notes and past papers.Once I teach my student/s a topic, I make sure the lesson is concluded by attempting Examination Questions together.
In addition, each lesson takes 1 hour (60 minutes) duration.That time , is fair enough to have had all the lesson objectives met.

Booking me for a class guarantees excellent grades.
I look forward to be your Tutor.Don't forget to share your review after the lesson/s.I thank you.
Best regards,
~Kelvin

Zakariae

4.8

(15)

I offer personalized tutoring in mathematics, physics, and life and earth sciences, tailored to each student's level and needs. My approach is based on simple explanations, concrete examples, and an interactive method to facilitate understanding, reinforce foundational knowledge, and progressively develop the student's autonomy.

Fairy

4.8

(15)

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.

Yassine

4.8

(15)

Professeur agrégé de Sciences de l'ingénieur, j’aide élèves et étudiants à réussir examens et concours. J’interviens aux classes préparatoires (MPSI, MP, PSI...) et jusqu’à l’université (Licence ). Ma méthode : comprendre le cours, pratiquer avec rigueur, structurer le raisonnement et attaquer des exercices et problèmes bien choisis. Chaque séance inclut exercices ciblés, conseils méthodologiques, et suivi personnalisé. Vous recevez un enregistrement vidéo plus un PDF annoté après chaque cours. Cours en ligne via Google Meet, 7 jours sur 7, avec flexibilité horaire. Je reste joignable entre les séances pour répondre aux questions. Contactez-moi pour un premier échange.

Malek

4.8

(15)

Ich studiere Computer Engineering an der RWTH Aachen und biete individuelle Nachhilfe in Mathematik, Physik und naturwissenschaftlichen Grundlagen an – von den ersten Grundlagen bis zur Oberstufe und zum Abitur.
Besonders wichtig ist mir, dass Schülerinnen und Schüler den Stoff wirklich verstehen, anstatt Formeln und Lösungswege nur auswendig zu lernen. Ich erkläre Zusammenhänge Schritt für Schritt, passe Tempo und Schwierigkeitsgrad individuell an und arbeite gezielt an den Stellen, an denen noch Unsicherheiten bestehen.
Wir können gemeinsam:
- aktuelle Themen aus dem Unterricht aufarbeiten,
- Hausaufgaben und Übungsaufgaben besprechen,
- Wissenslücken systematisch schließen,
- uns auf Klassenarbeiten, Klausuren oder das Abitur vorbereiten,
- und schwierige Themen mit zusätzlichen Aufgaben festigen.
In Mathematik kann ich unter anderem bei Algebra, Gleichungen, Funktionen, Geometrie, Trigonometrie, Analysis, Vektorrechnung und Wahrscheinlichkeitsrechnung helfen.
In Physik unterstütze ich unter anderem bei Mechanik, Elektrizitätslehre, Energie, Schwingungen/Wellen und weiteren schulischen Themen.
Durch mein Ingenieurstudium beschäftige ich mich selbst intensiv mit höherer Mathematik, Physik und technischen Anwendungen. Daher kann ich bei Bedarf auch fortgeschrittenere Schülerinnen und Schüler sowie Studienanfänger in mathematischen Grundlagen unterstützen.
Der Unterricht kann auf Deutsch oder Englisch stattfinden und wird individuell an das Niveau und die Ziele des Schülers bzw. der Schülerin angepasst.
Mein Ziel ist, dass Mathematik und Physik nicht mehr wie eine Sammlung zufälliger Formeln wirken, sondern Schritt für Schritt logisch und nachvollziehbar werden.

Federica

4.8

(15)

Hi, my name is Federica and I am an astrophysicist. I obtained my PhD from ETH Zürich and, for over ten years, I have been working in international research teams, contributing to space missions such as ESA Euclid and NASA Roman, and collaborating with scientists from all over the world.

For more than ten years, I have also been active in teaching, tutoring and science communication. In my teaching approach, I consider it essential to listen to the student, understand their needs, and identify the way they reason and learn best. This is key to creating a truly personalised learning path that motivates them to engage with the subject and gradually take on more advanced learning challenges.

I helped several students to strengthen the foundations, identify strategic points early, and progressively work towards more advanced problem-solving and exam preparation.

I do not believe in a standard “one-to-many” lesson, but rather in a learning path designed to genuinely consolidate the student’s knowledge, help them become progressively more independent, and make them aware of the practical and interdisciplinary applications that a particular subject can have in their academic journey.

I am fluent in Italian and English, and I am currently strengthening my knowledge of French. Thank you for your attention.