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

Struggling with Algebra or stuck preparing for GCSE, A-Level, SAT, or AP Calculus exams? I help students improve their grades and confidence—often within just a few lessons. With a BSc in Physics, an MSc in Applied Mathematics, and over 14 years of teaching experience, I specialize in making math simple, understandable, and even enjoyable. Whether you feel “bad at math” or are aiming for top grades, I’ll help you build a strong foundation and succeed in exams. I don’t use boring, one-size-fits-all teaching. I adapt every lesson to how you learn best — with visual explanations, real-life examples, step-by-step guidance, or ADHD-friendly structure. If math has ever felt confusing, frustrating, or overwhelming, I’ll help you finally make sense of math. About my sessions Sessions are shaped by what each student needs. For some, the goal is a top grade in an upcoming exam. For others, it’s catching up, building confidence, or getting a head start before the new academic year. I work with students who are passionate about their subjects as well as those who feel stuck, frustrated, or disengaged. Rather than sticking to a fixed plan, I adapt sessions in real time. If something isn't clicking, we slow down and focus on it until it does. If priorities shift, we shift with them. This flexibility helps each student make consistent, meaningful progress without getting overwhelmed. I also bring a wide library of resources to each lesson. These include past papers, targeted exercises, structured notes, and extension materials for those who want to go beyond the syllabus. Between sessions, I can provide support materials to help reinforce learning or guide independent study. I have extensive experience preparing students for: ⦁ 11+, 13+, Common Pre-Tests, and top independent/grammar school entrance exams ⦁ GCSE and iGCSE across all major boards: Edexcel, AQA, OCR, CIE, WJEC ⦁ A-Level and Further Mathematics across all major boards: Edexcel, AQA, OCR, MEI, CIE, WJEC ⦁ Additional support for Pre-U, AP, SAT, ACT, and university admissions quantitative sections Sessions are fully tailored, goal-focused, and responsive. Students leave with a clearer understanding of the material and a stronger sense of how to move forward. I can assist you with Arithmetic, Calculus, Pre-Calculus, Algebra, Elementary Algebra, College Algebra, Regents algebra 1 & 2, Regents algebra 1 & 2 common core, Pre-Algebra, Trigonometry, Advanced Calculus, Pure Maths, Further Maths, Integral Calculus, and Differential Calculus, as well as test preps for 11+, 13+, PSAT, SAT, GCSE, ACT, GED, CLEP, AP, IB, GRE, and many other school and college entrance exam preps. I have a proven track record of success teaching and private tutoring mathematics in high-achieving schools and colleges in the US, Canada, the UK, Australia, and many other countries. I highly encourage you to book your first session with me. You will see how math can be both enjoyable and understandable. Thanks, and see you soon.

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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
    • Calculus
    • 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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