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Private tutor for mathematics, physics, chemistry and science For all stages Primary, middle and secondary as well Aptitude testing courses for secondary school Teaching mathematics and mechanics to students in technical colleges and engineering colleges Teaching and monitoring all primary and intermediate school subjects

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Thermal changes accompanying physical and chemical changes Thermal changes accompanying physical changes - melting temperature It is the temperature change when one mole of solute is dissolved in a given amount of solvent (The amount of heat energy absorbed or released when one mole of solute is dissolved in a given amount of solvent). During the dissolution process: two processes occur: A- Dissociation: the breaking of bonds (endothermic reaction) Sodium and chloride ions dissociate from the crystal lattice as a result of the ionic bond breaking. The energy absorbed to break the bond is called the heat of the crystal lattice (bond energy). - Crystal lattice temperature: It is the energy needed to break the bond between ions in the crystal lattice. B- Hydration: The dissociated ions bind with water molecules to form hydration ions (exothermic process). Rehydration temperature: It is the amount of heat released when hydrating ions bind to water molecules. If the crystal lattice temperature > heat of hydration Dilution temperature: It is the heat change per mole of solute when diluted from a concentrated solution to a dilute solution. (It is the heat change of one mole of solute when diluted in a large amount of water (about 1000 moles of solvent)). Sedimentation temperature: The amount of heat released when one mole of an insoluble substance is completely precipitated. - heat of combustion It is the amount of heat released when one mole of a substance is completely burned in an abundance of oxygen. (The reaction is always exothermic). Formation temperature: It is the amount of heat released or absorbed when one mole of a compound is formed from its elemental elements so that the elements are in their standard state. (at 25 °C, a pressure of 76 x g). Note: Heat of formation of the elements = zero

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Experienced over 18 years, I give private lessons in Mathematics - Analysis - Matrices - Statistics - Algebra - Geometry - Physics - Chemistry - Biology and Geology to students of French program of Terminales, Bac, 1ère, Seconde, Brevet or international gold European (in English) or competition and medical university preparatory classes or 1st and 2nd university years either at home or by internet online by a method of virtual class following a link which serves as a table plus skype (very modern and effective method) with results all mentioned since 2015 by this method or by the face-to-face method since 2002. For more information, do not hesitate to contact me, guaranteed response in a few minutes up to 10 hours maximum.

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2Students

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.

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1Students

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!

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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.

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4Students

As a dedicated PhD student in biochemistry at EPFL, I offer personalized tutoring in chemistry and biochemistry for students at high school, university, or master’s level. Whether you’re preparing for exams, struggling with complex concepts, or aiming to deepen your understanding, I tailor each session to your goals and learning style. With a strong academic background and a passion for teaching, I strive to make science approachable, engaging, and relevant. My approach emphasizes clear explanations, critical thinking, and practical examples to help you build confidence and excel in your studies.