Kelvin E. Oritsedere

Kelvin E.

Verified teacher, moderated by the Classgap team
Nigeria
10 10 21

5,0 (21)

121 lessons

Maths, Physics

+ 10 years of exp. teaching online classes

About me Availability Reviews (21) More info

About me

Is math getting harder than it should be? Hi, I'm Kelvin — a Mathematics tutor with an MSc in Applied Mathematics, a BSc in Physics, and 14+ years of teaching experience. My mission is to offer affordable, individualised academic support to students who need it. I believe every child can succeed academically with the right resources and support — and sometimes that support is best found outside the classroom. Whether you or your child is preparing for the SAT, GCSE, IGCSE, IB, AP, A-Level, or university mathematics, catching up on missed concepts, or aiming for higher grades, I can help you turn confusion into understanding, confidence, and measurable progress. I don't believe mathematics should be about memorizing formulas or following procedures without understanding them. I help students understand why mathematics works, recognize patterns, solve unfamiliar problems, and apply their knowledge with confidence — from Pre-Algebra and Algebra through Geometry, Trigonometry, Precalculus, and Calculus. My approach is patient, adaptable, structured, and goal-focused, with every lesson built around the student's level, curriculum, and target outcome. ✨ Why Students & Parents Choose Me Families choose me because they want more than homework help. They want an experienced teacher who can identify what's holding a student back, explain difficult concepts clearly, and provide a practical path forward. I help students: Identify and address important learning gaps Understand challenging concepts through clear, step-by-step explanations Build strong mathematical foundations Develop problem-solving and critical-thinking skills Improve accuracy and mathematical fluency Prepare strategically for examinations Become increasingly independent learners. Every lesson is personalized around the student's current level, curriculum, learning needs, and target outcome — I adjust the pace, explanations, examples, and support accordingly. 📈 Student Progress & Results Students I've worked with have achieved results including: SAT Math score increases of up to 200 points GCSE students moving from Foundation to Higher Tier and securing Grades 8–9 A-Level students achieving A and A* grades Successful admission to competitive Engineering, Medicine, Computer Science, Economics, and other STEM programs Students developing the skills to tackle challenging problems without relying on memorization For me, success is about more than a higher grade. It means helping students become capable mathematical thinkers who can approach unfamiliar problems with clarity and confidence. 👨‍🏫 About Me I've taught students from the UK, US, Canada, Australia, UAE, and beyond, across a wide range of curricula and educational systems. What I love most about teaching math is the moment a concept finally clicks, and a student's face lights up—that "aha" moment is why I do this work. My teaching experience includes: SAT, PSAT & ACT Math GCSE & IGCSE Mathematics A-Level Mathematics IB Mathematics — AA & AI, SL & HL AP Precalculus & AP Calculus — AB & BC Pre-Algebra & Algebra I/II Geometry & Trigonometry Functions & Precalculus College Algebra Calculus I & II 🔢 My Teaching Approach I combine a structured learning process with a flexible, student-centered approach: 1. Review — Revisit previous learning and identify concepts that need reinforcement. 2. Explain — Break new concepts into clear, logical steps using visual representations and carefully selected examples. 3. Check Understanding — Use targeted questions to uncover misconceptions and confirm genuine understanding. 4. Practise — Work through carefully selected problems with guidance, gradually building greater independence. 5. Apply — Tackle exam-style and unfamiliar problems to develop flexible problem-solving skills. 6. Review & Plan — Assess what has been mastered, address remaining difficulties, and establish the next priorities. 📚 Subjects & Exam Preparation Core Mathematics Elementary & Middle School Maths • Pre-Algebra • Algebra I & II • Geometry • Trigonometry • Functions • Precalculus • Calculus • College Algebra International Curricula GCSE • IGCSE • A-Level Mathematics • IB Mathematics AA & AI — SL & HL • AP Precalculus • AP Calculus AB & BC Test Preparation SAT Math • PSAT Math • ACT Math University Mathematics College Algebra • Calculus I & II Whether you need an Algebra tutor, Calculus tutor, SAT Math tutor, GCSE Maths tutor, IGCSE Maths tutor, IB Maths tutor, A-Level Mathematics tutor, or ongoing mathematics support, I will create a personalised learning plan around your specific needs and goals. 🌟 Ready to Improve Your Maths? Book a trial lesson today to receive your personalised roadmap. Whether you are catching up, preparing for an important examination, improving your grades, or aiming for top marks, I will help you develop the understanding, problem-solving ability, confidence, and exam strategies needed to succeed. Let's turn difficult mathematics into something you can understand, solve, and master. I look forward to helping you achieve your mathematical goals.

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Feedback from my students

5,0

★★★★★
21 reviews
5★
100 %
4★
0 %
3★
0 %
2★
0 %
1★
0 %
Ruby
★★★★★
great teacher, explains well, made everything clear and understandable
mohammed
★★★★★
Karl Wurster
★★★★★
We couldn’t be happier with Kelvin. If I could I would give him 6 stars! He has great knowledge of a wide range of math topics. Most importantly he makes math fun. Our son says his positive energy is infectious; he now looks forward to his classes…even during the summer holidays. He’s done a fantastic job getting our son ready for the 9th grade. We will definitely use him during the school year to continue to give him a boost.
Marie Granholm
★★★★★
Very good explainations!
Abena
★★★★★
Excellent teacher, we are very very pleased with him.

I teach

  • Maths
    • Algebra
    • Basic Math
    • Applied Mathematics
    • Trigonometry
    • Discrete Math
    • Geometry
  • Physics
    • Electrodynamics
    • Electromagnetism
    • Thermodynamics
    • High Energy Physics
    • Basic Physics
    • Physics (Mechanics)

Languages I speak

EnglishNative

Education

Bsc Physics

Degree

Msc. Applied Mathematics

Master/Postgraduate

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Buenas, alumnos/as 👋 Se ofrecen clases en el ámbito de ciencias y tecnología, incluyendo asignaturas como Física 🔭, Matemáticas 📐 y Química 🧪, entre otras (para más información o concretar contenidos, se recomienda contactar previamente mediante mensaje). Las clases están dirigidas a estudiantes de Primaria, Secundaria, Bachillerato y también cursos superiores, según el nivel y las necesidades de cada alumno. Es altamente recomendable contactar con el profesor antes de reservar una sesión de 20 minutos o una primera clase de 60 minutos, para poder orientar mejor el aprendizaje. El objetivo principal es resolver cualquier dificultad, tanto teórica como práctica, y ayudar a comprender estas asignaturas que a menudo pueden resultar complejas, favoreciendo así la confianza y el rendimiento académico. En cuanto a la formación, se ha cursado el Bachillerato Científico-Tecnológico, además de cursos de fundamentos de Física, Matemáticas y Química, y diversas asignaturas de electrónica y electricidad, lo que permite ofrecer una base sólida y técnicas de estudio adaptadas a cada caso 💭 Para cualquier duda, se recomienda enviar un mensaje para resolverla de forma personalizada. ¡Os animo a intentarlo! 👊