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7 physics teachers in Douala

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7 physics teachers in Douala

Trusted teacher: Digital suites courses I - General A numeric sequence is an application from N to R. • Bounded sequence A sequence (Un) is bounded if there exists a real A such that, for all n, Un ≤ A. We say that A is an upper bound of the series. A sequence (Un) is reduced if there exists a real number B such that, for all n, B ≤ one. One says that B is a lower bound of the sequence. A sequence is said to be bounded if it is both increased and reduced, that is to say if it exists M such that | Un | ≤ M for all n. • Convergent suite The sequence (Un) is convergent towards l ∈ R if: ∀ε> 0 ∃n0 ∈ N ∀n ≥ n0 | un − l | ≤ ε. A sequence which is not convergent is said to be divergent. When it exists, the limit of a sequence is unique. The deletion of a finite number of terms does not modify the nature of the sequence, nor its possible limit. Any convergent sequence is bounded. An unbounded sequence cannot therefore be convergent. • Infinite limits We say that the following (un) diverges Towards + ∞ if: ∀A> 0 ∃n0∈N ∀n ≥ n0 Un≥A Towards −∞ if: ∀A> 0 ∃n0∈N ∀n≤ n0 Un≤A. • Known limitations For k> 1, α> 0, β> 0 II Operations on suites • Algebraic operations If (un) and (vn) converge towards l and l ', then the sequences (un + vn), (λun) and (unvn) respectively converge towards l + l', ll and ll '. If (un) tends to 0 and if (vn) is bounded, then the sequence (unvn) tends to 0. • Order relation If (un) and (vn) are convergent sequences such that we have a ≤ vn for n≥n0, then we have: Attention, no analogous theorem for strict inequalities. • Framing theorem If, from a certain rank, un ≤xn≤ vn and if (un) and (vn) converge towards the same limit l, then the sequence (xn) is convergent towards l. III monotonous suites • Definitions The sequence (un) is increasing if un + 1≥un for all n; decreasing if un + 1≤un for all n; stationary if un + 1 = one for all n. • Convergence Any sequence of increasing and increasing reals converges. Any decreasing and underestimating sequence of reals converges. If a sequence is increasing and not bounded, it diverges towards + ∞. • Adjacent suites The sequences (un) and (vn) are adjacent if: (a) is increasing; (vn) is decreasing; If two sequences are adjacent, they converge and have the same limit. If (un) increasing, (vn) decreasing and un≤vn for all n, then they converge to l1 and l2. It remains to show that l1 = l2 so that they are adjacent. IV Extracted suites • Definition and properties - The sequence (vn) is said to be extracted from the sequence (un) if there exists a map φ of N in N, strictly increasing, such that vn = uφ (n). We also say that (vn) is a subsequence of (un). - If (un) converges to l, any subsequence also converges to l. If sequences extracted from (un) all converge to the same limit l, we can conclude that (un) converges to l if all un is a term of one of the extracted sequences studied. For example, if (u2n) and (u2n + 1) converge to l, then (un) converges to l. • Bolzano-Weierstrass theorem From any bounded sequence of reals, we can extract a convergent subsequence. V Suites de Cauchy • Definition A sequence (un) is Cauchy if, for any positive ε, there exists a natural integer n0 for which, whatever the integers p and q greater than or equal to n0, we have | up − uq | <ε. Be careful, p and q are not related. • Property A sequence of real numbers, or of complexes, converges if, and only if, it is Cauchy SPECIAL SUITES I Arithmetic and geometric sequences • Arithmetic sequences A sequence (un) is arithmetic of reason r if: ∀ n∈N un + 1 = un + r General term: un = u0 + nr. Sum of the first n terms: • Geometric sequences A sequence (un) is geometric of reason q ≠ 0 if: ∀ n∈N un + 1 = qun. General term: un = u0qn Sum of the first n terms: II Recurring suites • Linear recurrent sequences of order 2: - Such a sequence is determined by a relation of the type: (1) ∀ n∈N aUn + 2 + bUn + 1 + cUn = 0 with a ≠ 0 and c ≠ 0 and knowledge of the first two terms u0 and u1. The set of real sequences which satisfy the relation (1) is a vector space of dimension 2. We seek a basis by solving the characteristic equation: ar2 + br + c = 0 (E) - Complex cases a, b, c If ∆ ≠ 0, (E) has two distinct roots r1 and r2. Any sequence satisfying (1) is then like : where K1 and K2 are constants which we then express as a function of u0 and u1. If ∆ = 0, (E) has a double root r0 = (- b) / 2a. Any sequence satisfying (1) is then type: - Case a, b, c real If ∆> 0 or ∆ = 0, the form of the solutions is not modified. If ∆ <0, (E) has two conjugate complex roots r1 = α + iβ and r2 = α − iβ that we write in trigonometric form r1 = ρeiθ and r2 = ρe-iθ Any sequence satisfying (1) is then of the type: • Recurrent sequences un + 1 = f (un) - To study such a sequence, we first determine an interval I containing all the following values. - Possible limit If (un) converges to l and if f is continuous to l, then f (l) = l. - Increasing case f If f is increasing over I, then the sequence (un) is monotonic. The comparison of u0 and u1 makes it possible to know if it is increasing or decreasing. - Decreasing case f If f is decreasing over I, then the sequences (u2n) and (u2n + 1) are monotonic and of contrary Made by LEON
Math · Physics · Computer science
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Trusted teacher: -- EB & IB Tariff Options Available -- Good morning and welcome on my profile! I am a passionate and dedicated maths and sciences teacher with over 7 years of experience helping students achieve their academic goals. Whether you're struggling with the basics or advanced concepts, I'm here to support you with patience, clarity, and a deep understanding of math. (European Baccalaureate and International Baccalaureate tariff options available.) -- Teaching Methods -- I use teaching methods adapted to every learning style. My approach includes: • Initial Assessment: Understand your current level and identify your strengths and weaknesses through initial assessments. • Personalized Learning Plans: Develop a personalized study plan that targets your specific needs and goals. • Interactive Learning: Use of digital tools, visual aids and concrete examples to make concepts more tangible. • Problem Solving Techniques: Teach various problem-solving strategies and develop critical thinking skills to approach complex issues. • Regular Reviews and Practices: Integrate regular reviews and practice sessions to reinforce concepts and improve retention. • Adaptability: Modify teaching strategies based on your progress and feedback to ensure continuous improvement. -- Professionalism -- Professionalism is at the heart of my teaching method. I am committed to providing a respectful, caring and structured learning environment. Here's what you can expect from me: • Punctuality: I respect your time and ensure that our classes start and end at the scheduled time. • Preparation: Each session is carefully planned to meet your specific needs and goals. • Constructive Feedback: I provide constructive and rapid feedback to help you understand your progress and identify areas for improvement. My goal is to make science accessible and exciting, helping you develop a solid understanding of fundamental principles and practical applications. I hope to help you discover the beauty and complexity of the scientific world while achieving your academic goals.
Math · Physics · Chemistry
Trusted teacher: IGCSE Chemistry Content Overview: 1 The particulate nature of matter 2 Experimental techniques 3 Atoms, elements and compounds 4 Stoichiometry 5 Electricity and chemistry 6 Chemical energetics 7 Chemical reactions 8 Acids, bases and salts 9 The Periodic Table 10 Metals 11 Air and water 12 Sulfur 13 Carbonates 14 Organic chemistry As and A level Chemistry Content overview: Physical chemistry 1 Atoms, molecules and stoichiometry 2 Atomic structure 3 Chemical bonding 4 States of matter 5 Chemical energetics 6 Electrochemistry 7 Equilibria 8 Reaction kinetics Inorganic chemistry 9 The Periodic Table: chemical periodicity 10 Group 2 11 Group 17 12 An introduction to the chemistry of transition elements 13 Nitrogen and sulfur Organic chemistry and analysis 14 An introduction to organic chemistry 15 Hydrocarbons 16 Halogen derivatives 17 Hydroxy compounds 18 Carbonyl compounds 19 Carboxylic acids and derivatives 20 Nitrogen compounds 21 Polymerisation 22 Analytical techniques 23 Organic synthesis IB Chemistry Content Overview: Core 1. Stoichiometric relationships 2. Atomic structure 3. Periodicity 4. Chemical bonding and structure 5. Energetics/thermochemistry 6. Chemical kinetics 7. Equilibrium 8. Acids and bases 9. Redox processes 10. Organic chemistry 11. Measurement and data processing Additional higher level (AHL) 12. Atomic structure 13. The periodic table—the transition metals 14. Chemical bonding and structure 15. Energetics/thermochemistry 16. Chemical kinetics 17. Equilibrium 18. Acids and bases 19. Redox processes 20. Organic chemistry 21. Measurement and analysis Option A. Materials B. Biochemistry C. Energy D. Medicinal chemistry IGCSE Physics Content Overview: 1 General physics 2 Thermal physics 3 Properties of waves, including light and sound 4 Electricity and magnetism 5 Atomic physics Advanced Organic Chemistry Content Overview: 1. Carbon Compounds and Chemical Bonds 2. Representative Carbon Compounds: Functional Groups, Infrared Spectroscopy, & Intermolecular Force 3. An Introduction to Organic Reactions: Acids and Bases 4. Alkanes: Nomenclature, Conformational Analysis, & An Intro to Synthesis 5. Stereochemistry: Chiral Molecules 6. Ionic Reactions - Nucleophilic Substitution & Elimination Reactions: Alkyl Halides 7. Alkenes & Alkynes: Properties & Synthesis, Elimination Reactions of Alkyl Halides 8. Alkenes & Alkynes II: Addition Reaction 9. Spectroscopic Methods of Structure Determination 10. Radical Reactions 11. Alcohols & Ethers 12. Alcohols from Carbonyl Compounds, Oxidation-Reduction & Organometallic Compounds 13. Conjugated Unsaturated Systems 14. Aromatic Compounds 15. Reactions of Aromatic Compounds 16. Aldehydes & Ketones I: Nucleophilic Additions to the Carbonyl Group 17. Aldehydes & Ketones II: Enolates & Enols Aldol & Alkylation Reactions 18. Carboxylic Acids & Their Derivatives: Nucleophilic Substitution at the Acyl Carbon 19. Synthesis & Reactions of a-Dicarbonyl Compounds: More Chemistry of Enolate Ions 20. Amines 21. Phenols & Aryl Halides: Nucleophilic Aromatic Substitution 22. Carbohydrates 23. Lipids 24. Amino Acids & Proteins 25. Nucleic Acids & Protein Synthesis
Chemistry · Organic chemistry · Physics
Trusted teacher: I am a specialized and certified AS and A-Levels tutor with extensive experience in teaching Sequences and Series, along with a strong emphasis on Calculus. My tutoring sessions are designed to provide in-depth knowledge and understanding of these crucial mathematical topics, helping students to master the material and excel in their exams. Focus Areas in Sequences and Series Binomial Expansion: I guide students through the principles of binomial expansion, helping them understand how to expand expressions of the form (a+b)n . We explore the Binomial Theorem in detail, ensuring that students can apply it effectively in problem-solving scenarios. By the end of our sessions, students will be able to expand binomials with confidence and accuracy. Arithmetic Progressions (AP): Understanding arithmetic progressions is fundamental in mathematics. I provide comprehensive instruction on identifying and working with sequences where each term is derived by adding a constant. Students learn how to find the nth term, the sum of the first n terms, and how to apply these concepts to solve real-world problems. Geometric Progressions (GP): I also specialize in geometric progressions, where each term is obtained by multiplying the previous term by a constant. My approach includes explaining key concepts such as the nth term and the sum of a geometric series, both finite and infinite. We tackle a variety of problems to ensure a deep understanding of the subject. Further Sequences and Series: Beyond the basics, I explore further topics in sequences and series, including convergence and divergence. This advanced understanding prepares students for higher-level mathematics and the challenges they may face in university studies. Mastering Calculus In addition to Sequences and Series, I offer expert guidance in Calculus, which is essential for success in AS and A-Levels. My focus here includes: Differentiation: I help students understand the principles of differentiation, teaching them how to find derivatives and apply them to various functions. We work on techniques, such as the product and quotient rules, and explore applications of derivatives in real-world contexts. Integration: Students learn the fundamentals of integration, including definite and indefinite integrals. I emphasize techniques such as substitution and integration by parts, ensuring that students can tackle a wide range of problems. Application of Calculus: We explore how calculus is used in practical scenarios, including motion problems and areas under curves, to provide a holistic understanding of the subject. Proven Approach to Learning My proven approach focuses on solving past examination questions, which is crucial for familiarizing students with the exam format and types of questions they will encounter. I emphasize understanding core principles rather than rote memorization. This methodology not only boosts confidence but also ensures that students can apply their knowledge effectively in exams. I believe that personalized feedback is vital for growth. Throughout our sessions, I provide constructive feedback and support, allowing students to identify their strengths and areas for improvement. This continuous feedback loop fosters a growth mindset, empowering students to embrace challenges and develop resilience. Book Your Classes If you’re ready to elevate your understanding of Sequences, Series, and Calculus, I invite you to book your classes now. Experience the difference that comes with learning from an experienced tutor dedicated to your success. Let me guide you through an exciting and transformative learning journey that sets you on the path to achieving the highest grades possible. Together, we can unlock your full potential and ensure you are well-prepared for your AS and A-Level examinations. Your success is my priority, and I look forward to helping you reach your academic goals!
Calculus · Math · Physics
Math · Physics · Science
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Only reviews of students are published and they are guaranteed by Apprentus. Rated 4.8 out of 5 based on 341 reviews.

Premium Lessons By MIT-Trained Tutor | 10+ Years Experience in IB, IGCSE, GCSE, AP, A-Levels, SAT (The Hague)
David
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It is with the utmost admiration and gratitude that I extend my effulgent endorsement for David, the epitome of mathematical tutorship. His fervor for the subject and his pupils is steadfast, and David’s commitment to ensuring proficiency and comprehension is manifest in every tutorial session. His availability is most pliable, as he exhibits a constant readiness to alter his docket to accede to the necessities of his students. This adaptability is rare and precious quality, one that has played a seminal role in my time near the finals. Not only do he demonstrate devotion during his scheduled lessons time, for he is always approachable for additional guidance and support outside his hours. David’s unwavering dedication to the academic success of his students is truly remarkable and deeply appreciated by those who benefit from it. What distinguishes David is not solely his mastery in mathematics, but his amiable and cordial demeanour. He cultivates a genial and hospitable environment; and his pedagogy a harmonious blend of professionalism and conviviality. I consider myself fortunate to have availed myself of David’s instruction, and I cannot recommend him highly enough. In conclusion, if you seek a mathematics tutor, David Devidze should be your first port of call. His passion for the subject, commitment to his students, and affable personality makes him the ideal tutor for anyone seeking to enhance their mathematical understanding and aptitude. A true gem in the world of tutelage
Review by VALENTIN
Science and math tutoring for primary and secondary school students (London)
Mavi
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I am pleased to share my positive experience with Mavi. Mavi's professionalism and deep knowledge of mathematics. Mavi's teaching approach is organized, clear, and engaging. She possess a remarkable ability to simplify complex concepts, making them accessible to all students. The personalized attention given to each student's learning style ensures a comprehensive understanding of the material. What stands out about Mavi is not only her expertise but also their commitment to creating a positive and inclusive learning environment. Students benefit from a supportive atmosphere that encourages collaboration and open communication. In summary, I highly recommend Mavi as a math teacher. her professionalism, knowledge, and dedication to student success make them an invaluable asset.
Review by ANTONELA
Mathematics classes for beginners and intermediate level (Gouda)
Mahmood
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I need to re-study 4 years of high school maths in only 5 months. Mahmood agreed to help me with this difficult task and thanks to his professional way of teaching I believe I can make this happen. He explains topics in detail and yet quickly enough to spare time for other topics. If you are unsure he points you to the right direction. Most important thing for me was that he made me realize that I first need to master concept #1 in order to be able to later master concept #5 and so on. You can see that he has a lot of teaching experience, he tries to understand the way YOU think and based on that he serves you clear explanation for topics you struggle to understand. I definitely recommend him as your next teacher!
Review by RADOSLAV
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