Quick answer
When choosing a GCSE tutor, the most important factors are: subject-specific degree qualification, knowledge of your child's exact exam board and specification, a structured approach with diagnostic assessment and a plan, and the ability to give specific feedback on mark-scheme level errors rather than general teaching. The delivery mode (online vs in-person) matters less than these factors. Start with a free trial or diagnostic session, and trust your child's engagement in that first session as much as the tutor's CV.
Choosing a GCSE tutor is not straightforward. The market ranges from undergraduate students charging £15 an hour to specialist agencies charging £70 an hour — and price alone tells you very little about effectiveness. This guide gives parents a clear framework for making a good decision, including the questions to ask before booking, the red flags to avoid, and the qualities that actually predict whether tutoring will improve your child's grade.
Step 1 — Diagnose before you search
Before approaching any tutor, gather evidence of where your child is and what specifically is going wrong. This means:
Collecting recent marked work, test results, and mock papers. Identifying the specific subjects, topics, and question types that are causing the most mark loss. Reading any teacher feedback about what is holding grades back. If possible, identifying the exam board — AQA, Edexcel, or OCR — for each subject your child is being tutored in.
The reason this matters is that the right tutor depends on the problem. A student who understands Biology but loses marks due to poor 6-mark question structure needs a tutor who is expert in exam technique and mark scheme analysis — not necessarily the most academically brilliant scientist. A student who has genuine gaps in their Physics content knowledge needs a tutor with deep subject knowledge who can reteach and explain clearly.
Qualifications — what matters and what does not
Subject degree. The most important qualification for a GCSE tutor is a degree in the subject they are teaching. A GCSE Maths tutor should have a degree in Mathematics or a closely related field. A GCSE Chemistry tutor should have a Chemistry degree. Depth of subject knowledge is what allows a tutor to explain concepts from multiple angles, anticipate misconceptions, and understand why a student's answer is wrong — not just that it is wrong.
Teaching experience. Formal classroom teaching experience (QTS) is one route — but it is not the only route to effective teaching. Tutors with experience tutoring many students at GCSE level, who have seen the full range of errors students make and know how to address them, can be equally or more effective than qualified classroom teachers in a one-to-one context. What matters is whether the tutor knows how to explain, how to identify a student's specific gap, and how to give feedback that changes the student's approach.
Exam board knowledge. This is a qualification that is rarely listed on a CV but is practically essential. A tutor who knows AQA GCSE Chemistry mark scheme conventions will produce better exam results than a Chemistry graduate who teaches the subject without knowing how it is examined. Ask prospective tutors directly: “Do you know the AQA [or Edexcel/OCR] specification for this subject? Have you worked with students on this specific board before?”
What to ask a prospective tutor
These are the questions that reveal whether a tutor will actually improve your child's grade — not just teach them things they already know.
“How do you assess a student before the first paid session?”
A good tutor runs a diagnostic. They ask to see recent marked work, they assess the student's current level, and they build a plan before any paid sessions begin. A tutor who jumps straight into teaching without assessment is not tailoring sessions to your child's specific needs.
“Which exam board does my child sit, and can you show me a past paper question and explain how the mark scheme awards marks?”
This question tests board-specific knowledge directly. If a tutor is not immediately fluent in the difference between AQA and Edexcel mark scheme conventions, they are not ready to prepare your child for their specific exam.
“How will you track progress and communicate it to me?”
The answer you want is something like: “I provide a written progress report each month covering what we worked on, what improved, and what still needs attention.” The answer you do not want is: “Your child can tell you how the sessions are going.”
“Can you give me an example of a common mistake students make in [subject] and how you would address it?”
This tests depth of subject-specific teaching knowledge. A strong answer references something specific — “In GCSE Biology, students often describe rather than explain in answer to ‘explain’ questions — they state what happens without giving the mechanism or reason” — rather than a generic response about building confidence or explaining clearly.
What should make you pause before booking
No diagnostic session before starting.
Any tutor who begins teaching without first assessing your child's specific gaps is not building a personalised programme — they are delivering generic tutoring.
Cannot specify the exam board or past paper.
If a tutor cannot tell you specifically which AQA, Edexcel, or OCR specification your child is sitting, or cannot discuss the mark scheme conventions for that board, they are not prepared to maximise exam performance.
No progress reporting or accountability structure.
Tutoring without tracking is guesswork. If a tutor has no system for communicating progress to parents, you have no way of knowing whether sessions are working until the exam results arrive.
Very low hourly rates with no structural support.
Tutors charging £10–15 per hour through unvetted platforms are typically undergraduate students without teaching experience or board-specific knowledge. This does not mean they cannot help — but it does mean the risk of a poor match is significantly higher.
Reluctance to discuss mistakes or exam technique.
The best tutors are comfortable talking about what students commonly get wrong and why. A tutor who can only discuss what they will teach — rather than how they will address specific errors — may not have the mark-scheme depth to improve exam performance.
What to look for in a first session
A free trial or diagnostic session is the most reliable way to assess a tutor. During the first session, watch — or ask your child afterwards — for:
Did the tutor ask questions first, or just start teaching? Good tutors spend the first session learning about the student before teaching.
Did your child feel comfortable asking questions? Comfort with the tutor is essential, particularly for students who are anxious or have had negative experiences with teachers in the past.
Was the session clearly focused on your child's specific gaps, or did it feel generic? A session that covers a topic your child already understands is a session that wasted time.
Was feedback specific and actionable? “You need to explain more” is not actionable. “In this Biology question, you described what the enzyme does but did not explain why the active site becomes complementary to the substrate — that's the mechanism the mark scheme rewards” is actionable.
Does it matter whether the tutoring is online or in-person?
The honest answer, backed by research, is that it matters much less than most parents assume. What determines outcomes is the quality of the tutor, the consistency of sessions, and the targeted nature of the programme — not whether the sessions take place on a screen or in a living room.
Online tutoring has one significant practical advantage: it removes the geographic constraint. Your child can access the best-matched specialist for their specific subject and exam board, regardless of location. This access to a better match often outweighs any marginal benefit from in-person delivery.
The one scenario where in-person may have a meaningful edge is for students with significant attention difficulties or anxiety that makes maintaining focus on a screen harder. For these students, the physical presence of a tutor can make a practical difference to engagement.
For most GCSE students, online tutoring with the right tutor produces results. Book a free diagnostic session with Nexus Academy →