IGCSE, Edexcel, Checkpoint, IB, Combined sciences Biology, Chemistry, Mathematics,

Von 28.82 Fr /Std

These courses provide students with a broad and engaging foundation in Science, covering Biology, Chemistry, and Physics. In Biology, learners investigate the structures, functions, and interactions of living organisms and their environments. Chemistry lessons focus on the composition, properties, and reactions of substances, helping students understand the building blocks of matter and the changes it undergoes. Physics explores the fundamental principles of energy, motion, and forces that shape the physical world. Through a balance of theory, practical experiments, and problem-solving activities, students develop critical thinking, analytical skills, and a deeper appreciation of how science explains and influences everyday life.

Zusätzliche Informationen

Punctuality by the students is highly advised, ensure to bring all necessary scientific instruments.

Ort

Online aus Sambia

Über mich

Experienced Science Educator with nearly a decade of teaching Biology and Chemistry across A Level, AS Level, O Level, IGCSE, Edexcel, and IB curricula, complemented by proficiency in Physics and Mathematics. Passionate about problem-solving, scientific inquiry, and continuous learning through documentaries and research, I am dedicated to delivering high-quality education that inspires curiosity, fosters critical thinking, and drives academic excellence in students.

Bildung

Bachelor’s Degree in Science Education – Kwame Nkrumah University, 2022 Certificate of Completion in Science Teaching Capital- Cambridge university press Science Practical in Blended Education – Cambridge university press

Erfahrung / Qualifikationen

I am an experienced educator with four years of teaching Chemistry, Biology, Physics, and Mathematics across multiple curricula, including A Level, IGCSE, Edexcel, and IB. I also lead a team of trained teachers specializing in Commercial subjects, Computer Science, and ICT, fostering a collaborative and multidisciplinary approach to learning. Committed to high-quality education, I focus on developing critical thinking, problem-solving skills, and academic excellence in all students.

Alter

Kinder (7-12 Jahre alt)

Jugendliche (13-17 Jahre alt)

Erwachsene (18-64 Jahre alt)

Seniorinnen und Senioren (65+ Jahre alt)

Unterrichtsniveau

Anfänger

Mittel

Fortgeschritten

Dauer

60 Minuten

Unterrichtet in

Englisch

Fachkenntnisse

Natururkunde

Physik

Chemie

Verfügbarkeit einer typischen Woche

(GMT -05:00)

New York

Online via Webcam

Mon

Tue

Wed

Thu

Fri

Sat

Sun

00-04

04-08

08-12

12-16

16-20

20-24

Electrochemistry: This class introduces students to the principles of electrochemistry, focusing on redox reactions and galvanic cell.

23.06 Fr /Std

Lesson: Electrochemistry
Duration: 60 minutes
Grade Level: Advanced Science / Chemistry (IGCSE, A Level, IB)
Main Objectives:
By the end of this lesson, students should be able to:
1. Define electrochemistry and explain its importance.
2. Describe the difference between electrolytic and galvanic (voltaic) cells.
3. Write half-reactions and overall cell reactions.
4. Calculate standard electrode potentials and predict the direction of electron flow.
5. Understand practical applications of electrochemistry in everyday life.

Lesson Outline / Brief Notes:

1. Introduction to Electrochemistry (10 minutes)
Definition: Electrochemistry is the branch of chemistry that deals with the relationship between chemical reactions and electricity.
Key Concept: Redox reactions involve the transfer of electrons.
Real-life example: Batteries, electroplating, corrosion prevention.
2. Galvanic (Voltaic) Cells (15 minutes)
Composed of two half-cells connected by a salt bridge.
Oxidation occurs at the anode, reduction at the cathode.
Example: Daniell cell
Zn(s) | Zn2+(aq) || Cu2+(aq) | Cu(s)
Oxidation: Zn → Zn2+ + 2e−
Reduction: Cu2+ + 2e− → Cu
3. Electrolytic Cells (10 minutes)
Require an external power source to drive non-spontaneous reactions.
Example: Electrolysis of molten NaCl
At cathode: Na+ + e− → Na
At anode: 2Cl− → Cl2 + 2e-
4. Standard Electrode Potentials (10 minutes)
Electrode potential measures the tendency of a species to be reduced.
Example:
Zn2+/Zn: -0.76 V
Cu2+/Cu: +0.34 V
Predict electron flow: Electrons flow from Zn to Cu in a Daniell cell.
5. Applications of Electrochemistry (5 minutes)
Batteries (Li-ion, lead-acid)
Electroplating (silver plating, chromium plating)
Corrosion protection (galvanization)
Exercise (10 minutes)
1. Short Answer Questions:
a. Define electrochemistry.
b. Identify the anode and cathode in a zinc-copper galvanic cell.
c. Explain the difference between galvanic and electrolytic cells.
2. Calculation:
Given:
Zn2+/Zn: -0.76 V
Cu2+/Cu: +0.34 V
Calculate the standard cell potential of a Daniell cell.
3. Application Question:
Describe one practical application of electrochemistry in everyday life and explain how it works.

Enthalpy Changes in Chemical Reactions; This lesson explores how chemical reactions involve energy changes that can be exo or endothermic.

23.06 Fr /Std

Lesson Plan: Enthalpy Changes in Chemical Reactions
Grade/Level: Secondary / IGCSE / AS level
Duration: 60 minutes
Topic: Enthalpy Changes in Reactions
Lesson Objectives
By the end of the lesson, students should be able to:
1. Understand that chemical reactions are accompanied by enthalpy changes, which can be exothermic or endothermic.
2. Construct and interpret reaction pathway diagrams, showing enthalpy change and activation energy.
3. Define and use key terms: standard conditions (⦵), enthalpy change of reaction (ΔHr⦵), formation (ΔHf⦵), combustion (ΔHc⦵), and neutralisation (ΔHneut⦵).
Lesson Breakdown (60 minutes)
1. Introduction (5 minutes)
Begin with a real-life hook:
Ask: “Why does burning wood release heat, but dissolving ammonium nitrate in water feels cold?”
Link to lesson: These are examples of exothermic and endothermic reactions.
2. Theory: Enthalpy Changes (10 minutes)
Define enthalpy (H): The heat content of a system at constant pressure.
Define enthalpy change (ΔH): Heat energy transferred during a reaction at constant pressure.
Distinguish:
Exothermic reaction: ΔH is negative (heat released).
Endothermic reaction: ΔH is positive (heat absorbed).
Give simple examples:
Exothermic → combustion of methane.
Endothermic → thermal decomposition of calcium carbonate.
3. Reaction Pathway Diagrams (15 minutes)
Draw and explain two diagrams:
Exothermic pathway: Products lower in energy than reactants, ΔH negative.
Endothermic pathway: Products higher in energy than reactants, ΔH positive.
Introduce activation energy (Ea):Minimum energy needed for reaction to occur.
Label diagrams clearly:
Reactants → peak (activation energy) → products.
Highlight ΔH and Ea.
4. Standard Conditions and Key Enthalpy Terms (15 minutes)
Explain standard conditions (⦵):

298 K (25°C), 101 kPa pressure, substances in standard states.
Define and discuss:
Standard enthalpy change of reaction (ΔHr⦵): Heat change when reaction occurs in molar quantities under standard conditions.
Standard enthalpy of formation (ΔHf⦵): Heat change when 1 mole of compound is formed from its elements in their standard states.
Standard enthalpy of combustion (ΔHc⦵):Heat change when 1 mole of substance is completely burnt in oxygen under standard conditions.
Standard enthalpy of neutralisation (ΔHneut⦵): Heat change when an acid and alkali react to form 1 mole of water under standard conditions.
Use simple examples for each (e.g., combustion of methane, formation of H2O, neutralisation of HCl with NaOH).

5. Guided Practice / Mini Activity (10 minutes)
Students sketch their own reaction pathway diagrams (exothermic and endothermic).
Label ΔH and Ea.
Pair discussion: “Why do we still need activation energy even for exothermic reactions?”

6. Exercise (Homework / Classwork) (5 minutes)
Answer the following questions:
1. State whether each reaction is exothermic or endothermic:
a) Burning propane gas in oxygen.
b) Photosynthesis in plants.
c) Dissolving anhydrous copper(II) sulfate in water.

2. On a reaction pathway diagram:

Show ΔH and Ea for an endothermic reaction.

3. Define the following terms and give one example each:
a) Standard enthalpy of formation (ΔHf⦵)
b) Standard enthalpy of combustion (ΔHc⦵)
c) Standard enthalpy of neutralisation (ΔHneut⦵)

4. Under standard conditions, the enthalpy of combustion of methane is –890 kJ mol−1.

Samia

4.54

(28)

Physics and chemistry are not difficult. It's a reasoning and logic to acquire. In case of difficulties React quickly so as not to allow the gaps to accumulate: with a little will remediation is always possible.

I am a principal teacher of physics chemistry with a long experience in teaching the French system and the Tunisian system which allowed me to devote myself to the regular follow-up of students in difficulty or wanting to excel.
I offer personalized tutoring according to the needs of the student to allow the student to remedy his shortcomings and acquire the right methodology + enrich his knowledge.
courses for all levels from high school to high school (different sections)
for each session I make sure that the student has assimilated the previous knowledge and revised his homework and then begins a new part of the course: explanation, summaries and exercises of applications. Before each test, we prepare different exams and I make sure that the student has assimilated all the knowledge.
In case of previous difficulties I make sure to remedy these shortcomings and catch up.
the schedules are flexible and the courses are personalized.
Thanks to the courses I teach, you will quickly see that physics and chemistry are not difficult. It is intellectual gymnastics, reasoning and logic to be acquired. React quickly in the event of difficulties so as not to allow the gaps to be added: remediation will be all the easier.
My mission is to help the learner j to take off his notes by overcoming his difficulties and in particular by gaining self-confidence.

Lion

4.54

(28)

I offer private tutoring for high school or university students to help them study and further their knowledge.

High school students:

Math : complete curriculum
Physics : complete curriculum
German: complete curriculum

University students:

Math: Analysis (1, 2, 3)
Linear Algebra
Probability Theory and Statistics

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Jana

4.54

(28)

Ich bin Jana, 29 Jahre alt und habe mein Gymnasiallehramtsstudium (Chemie & Philosophie) an der Universität Hamburg abgeschlossen. Derzeit bin ich kurz vor Abschluss meines Referendariats an einem Hamburger Gymnasium. Mittlerweile habe ich über 10 Jahre Nachhilfeerfahrung von Klasse 1-13 und unterstütze regelmäßig Schüler*innen bei der Vorbereitung auf das Abitur.

Sarah

4.54

(28)

The Baccalaureate is the aim of an entire school curriculum and it is the most important step that must be prepared in advance, remedying its shortcomings and reviewing its bases to succeed in its exams.
It is necessary to react quickly in the event of difficulties not to let the gaps accumulate: the remediation is always possible.

INDIVIDUAL and PERSONALIZED private revision lessons online or at my location
are offered to students by a group of senior teachers from the French system who are experienced and benefit from excellent pedagogy which has proven itself.
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I can assure you that with will and a little seriousness the learner will be able to quickly improve their grades, remedy their shortcomings and gain the confidence necessary for the Baccalaureate.
Lessons are also available for all other levels.

Roman

4.54

(28)

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.

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Khalil

4.54

(28)

If you’ve ever felt that science and math are difficult, it’s probably because no one showed you how to think like a problem solver.
In my classes, you’ll learn not just formulas or code but how to truly understand concepts, apply them, and build strong logical intuition.

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• 🔢 Mathematics: From algebra and calculus to applied problem-solving for real-world use.
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As a Software Engineer and Master’s student in Engineering at Nagoya University, I bring both academic knowledge and hands-on experience from real projects. My teaching approach is interactive, visual, and deeply focused on understanding over memorization.

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Emilie

4.54

(28)

I am currently a student in biomedical sciences at ULiège, with a bac S (phy-chi + maths + expert maths, + SVT).
I'm 21 years old, and I've been giving science tutoring classes since I was 15.
No matter the student's level, their needs to adapt, as well as their motivation, I am convinced that I could help you while adapting to your needs!
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Stephanie

4.54

(28)

I like to instill trust and passion for these fields and establish the right learning method for each student. My courses are intended for students aged 6 to 20 years old, ranging from beginner to advanced levels in mathematics, statistics, and/or physics.

Guy

4.54

(28)

I am a certified mathematics teacher in a high school in the Grand Duchy.
I am available to support middle and high school students with difficulties in mathematics and possibly in physics.
Classes can take place online or at the student's home.

Narayan

4.54

(28)

I am an MSc CIvil Engineering, M.Sc Finance and Economics, and an MBA graduate with over 14 years of experience teaching Mathematics up to the undergraduate level. Over the years, I have worked with a wide range of students and have successfully helped them excel in their studies. In addition to my extensive teaching background, I have more than 8 years of experience guiding students through standardized tests such as the GRE and SAT. My goal is to help you master these tests with effective strategies and a clear understanding of the subject matter.

My Mathematics lessons are tailored for students of all levels, including:
Master and Bachelor Students (subjects like Financial Mathematics, Business Mathematics, Basics of Mathematics for data science students, etc)
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In addition to Mathematics, I also offer tutoring in Physics and Chemistry for students up to the European upper secondary level, as well as IB and A-level students.

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National:
1. St Georges International School, Luxembourg, Edexcel (Pearson) Curriculum (10 students)
2. International School of Luxembourg, Luxembourg, IB Curriculum (6 Students)
3. Lycée Athénée de Luxembourg, Luxembourg, IB Curriculum (4 Students)
4. Lycée - International School Michel Lucius, Luxembourg, Cambridge Curriculum (6 Students)
5. European School Kirchberg, Luxembourg, European Curriculum (4 students)
6. Lycée Aline Mayrisch, Luxembourg, Luxembourgish curriculum (1 student)
7. Lënster Lycée International School, Luxembourg, European Curriculum (2 Students)

International:
8. International School of the Hague, Netherlands, IB Curriculum (1 student)
9. International School Of Nice, France, IB Curriculum (2 students)
10. Merchiston Castle School, Edinburgh, Scotland, Edexcel (Pearson)/Cambridge (1 students)
11. Silverline Private School, Limassol, Cyprus, UK national Curriculum (1 Student)
12. North Broward Preparatory School, Florida, USA, IB Curriculum (1 Student)
13. King Solomon School, Israel, IB Curriculum (1 student)
14. The European School of Bergen, The Netherlands, European Curriculum (1 student)

Additionally, I offer homework assistance and track each student's progress through periodic assessments, which can be scheduled based on the requirements of both students and parents.

Note: While some of my students follow curriculums in French, German, or Swedish, my primary language of instruction is English. Given that Mathematics is a universal language, it’s easy to understand the tasks, and I explain solutions clearly in English, ensuring a seamless learning experience for all.

Let’s embark on this learning journey together and achieve your academic goals with confidence!

Georgio

4.54

(28)

FRENCH longer...

Dear parents, Dear students,

I am writing to express my enthusiasm and commitment to providing private tutoring services in mathematics, physics, chemistry, and science across various levels and educational systems. With a deep passion for these subjects and a dedicated approach to education, my goal is to inspire and guide students toward a deeper understanding and appreciation of these fundamental disciplines.

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I am excited about the prospect of working with students and making a positive impact through private tutoring.

Regards,
Georgio

FRENCH

Dear parents, Dear students,

I am writing to express my enthusiasm and commitment to providing private tutoring services in mathematics, physics, chemistry, and science, spanning various levels and educational systems. With a deep passion for these subjects and a dedicated approach to education, my goal is to inspire and guide students toward a deep understanding and appreciation of these fundamental disciplines.

My long and extensive background in private tutoring has given me a deep understanding and mastery of effectively imparting knowledge to students with diverse learning abilities.

Through my tutoring efforts, I strive not only to explain complex concepts but also to instill problem-solving skills, critical thinking, and a curiosity-based approach to learning. I customize my teaching methods to match individual learning styles, ensuring that each student fully grasps the material and gains confidence in their studies.

Furthermore, my experience extends beyond classroom teaching. I believe in creating a caring environment where students feel encouraged to ask questions, participate in discussions, and explore the wonders of science and mathematics.

My ultimate goal as a tutor is to inspire a passion for these subjects while genuinely helping students achieve their academic goals. I am committed to providing comprehensive support, personalized guidance, and a rewarding educational experience to every student I work with.

I am confident that my dedication, expertise, and ability to inspire learning will make a significant difference in my students' educational journey. I look forward to contributing to the academic success of those I teach.

I am excited to work with students and make a positive difference through private tutoring.

Regards,
Georgio

Tereza

4.54

(28)

Physics, chemistry, and analysis are challenging subjects for many students. In this course, I teach the material in an understandable, step-by-step manner – from the basics to the Matura exam. Thanks to my many years of teaching experience, I can explain complex topics simply and address each student's individual needs. The lessons not only help close knowledge gaps, but also specifically prepare for exams and build confidence in tackling scientific and mathematical problems.

Kalthom

4.54

(28)

Natural sciences? No problem! 😎
Hi! I help you learn science easily and understandably. I explain complicated topics in a way that makes them click. My goal is for you to truly understand what you're learning – and not just waste time. I love science and I'll show you that learning can be fun!

Patricia

4.54

(28)

Unlock your full academic potential with expert-led preparation for Cambridge IGCSE and Pearson Edexcel IGCSE exams. Whether you are tackling Extended Mathematics or the Core Sciences (Physics, Chemistry, and Biology), my classes are designed to transform complex syllabus requirements into clear, manageable steps toward your target grade.

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Paul

4.54

(28)

Hello everyone :)
My name is Paul, I'm 30 years old and I have a bachelor's degree in mathematics. I have been teaching private math lessons for a long time and I love continuing to do so on this platform. I really enjoy helping people solve problems, get better at math and lose their fear of taking the next test. Together we can move mountains. If you would like to find out more about working together, just send me a quick message and I will get in touch with you. See you soon!