Qualified Science Tutor

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Private tutor and former Lead Physics Teacher. I diagnose misconceptions, rebuild understanding from first principles and teach the exam language that turns knowledge into higher grades. In-person in Welwyn Garden City or online.

Enhanced DBS checked • Qualified teacher (QTS) • BEng Mechanical Engineering • AQA, Edexcel & OCR experience


Subjects I teach

  • KS3 Science: supporting students to build a deep understanding of the fundamentals
  • GCSE Physics: concept clarity, past-paper practice, model answers and confidence building
  • GCSE Chemistry: core concepts, problem solving and exam technique
  • A-Level Physics: deep conceptual work, advanced problem practice and examiner-style feedback

Who I help

I work with students who feel stuck or are underperforming in science, and with ambitious A-Level students pushing for top grades.

Recent result: A Year 13 student achieved his target grade B in Physics and progressed to university.

Location: Based in Welwyn Garden City. I also teach online nationwide.


Pricing

KS3 lessons: £40/hr.

GCSE lessons: £40/hr.

A-Level lessons: £45/hr.


About me

I’m Demetri Loizou, a tutor with a Mechanical Engineering degree and experience as a Lead Physics Teacher. Alongside my private tuition, I work as a supply teacher across secondary schools, which keeps me directly in touch with current curriculum changes, exam board updates and classroom practice. I moved towards 1-to-1 tuition because I saw how much faster students progress with tailored, diagnostic teaching.

My lessons are calm, structured and practical. I start by identifying the exact misconceptions holding a student back, rebuild the foundations, then teach the precise exam language and technique examiners reward.

Verified LinkedIn profile.


Why choose me

  • Former Lead Physics Teacher with classroom and 1-to-1 experience
  • Specialist in rebuilding understanding from first principles
  • Calm, structured lessons with clear exam technique throughout

How lessons work

  • Free diagnostic consultation: a short, no-obligation call to discuss how I can support your child
  • Diagnostic assessment: quick tasks to pinpoint gaps
  • Focused lessons: explanation, worked examples and exam-style practice
  • Exam technique: model answers, timing strategies and common examiner traps

Students typically see clearer understanding and more confident exam performance within a few lessons.


Testimonials

“Demetrios is an excellent physics teacher who consistently makes complex concepts clear and engaging… supportive and structured approach… my son has made noticeable academic progress… approachable, knowledgeable, and genuinely invested in his students’ success… highly recommend him…”

Parent review (5/5)

“A pleasure to work with. Intelligent and enthusiastic.”

Previous client

“Demetri has been a colleague of mine for 2 years… extremely organised… trustworthy, always ready to give extra time… developed a great relationship with all his students… his love for Physics is evident… trusted by both staff and students to deliver interesting and challenging lessons every day.”

Former colleague

Contact

Availability

Monday-Friday: 5pm-8pm

Saturday: 2pm-8pm

Limited slots available.

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Enhanced DBS checked • Qualified teacher • BEng Mechanical Engineering • AQA, Edexcel & OCR experience • Lessons available online and in person (Welwyn Garden City).