Six Chairs, One Whiteboard: The Honest Maths of Group Lessons vs One-to-One

The price tag is the first thing we see, and the worst thing to compare

A small-group lesson might cost £15 an hour. A one-to-one tutor might cost £45, £55 or more. On the face of it, the group option looks like the sensible, frugal choice. And sometimes it is. But 'cost per hour' is a poor measure of either product, because an hour of group teaching and an hour of individual tutoring are not the same hour.

This is not an argument that one-to-one tutoring is always better. It isn't. Some children thrive in a small group. Some topics work beautifully with six chairs and one whiteboard. But parents are often shown a price list rather than a description of what they are actually buying. That is where the comparison goes wrong.

A more honest measure is cost per useful correction: how much it costs to get the specific misunderstanding in front of a human being who can fix it, and how quickly that happens.

What group lessons genuinely do well

Let's give group settings their due. A good small-group lesson can be excellent value. It offers routine, a sense of belonging and the mild social pressure that comes from not being the only person who has to answer. For a child who is anxious about one-to-one attention, a group can feel less exposing. For a child who needs steady weekly practice rather than deep diagnosis, a well-run group can be a sensible, affordable rhythm.

Groups also expose children to other ways of thinking. Someone else's wrong answer can be more instructive than your own. Someone else's neat method can unlock a topic. In English or humanities, discussion has real value, and a tutor-led group can generate it more naturally than a one-to-one session.

The catch is that group lessons are designed around a shared syllabus or a shared level. That is efficient. It is also the limitation. The group moves at the speed of the group, not the speed of your child's particular gap.

Where individual attention actually changes the outcome

One-to-one tutoring earns its keep when the problem is specific and invisible in a crowd. A child who nods along in class but cannot independently start a sentence. A pupil who has memorised a formula but cannot choose when to use it. A student who is quietly avoiding a topic because a single early misunderstanding has hardened into embarrassment.

In a group, these things can hide. In a one-to-one session, they surface quickly. The tutor can stop, rewind, ask a different question, change the example, wait five seconds longer, or abandon the planned worksheet because the real issue is two steps earlier. That diagnostic loop is the product. It is not a luxury extra.

This matters most around exams. If a GCSE student is losing marks on exam technique rather than content, a group can teach technique in general terms. A one-to-one tutor can watch the student attempt a question, see where the mark is dropped and correct that exact habit. That is a very different service, even if both are advertised as 'tutoring'.

The questions worth asking before you pay

Before committing to either option, ask a provider some plain questions.

How many students are actually in the group? 'Small group' can mean three or eight, and those are different products.

Who teaches it, and are they qualified in the subject and familiar with the relevant UK exam board? A confident university student can be excellent; so can a qualified teacher. But you should know who you are getting.

How does the provider identify gaps? If the answer is only 'we follow the curriculum', ask how they know whether your child has understood it.

What happens if my child is lost? In a group, can they ask without feeling exposed? In a one-to-one session, how does the tutor check understanding rather than assume it?

What does progress look like, and how will I hear about it? A brief written update every few weeks is worth more than a monthly invoice.

Can we try it before committing to a term? A trial session should tell you something real, not just whether your child liked the biscuits.

A fair way to compare the two

Group lessons are not a cheaper version of tutoring. They are a different product with different strengths. If your child needs routine, confidence and regular practice at a sensible price, a good group may be exactly right. If your child has a specific, stubborn gap that needs diagnosing and correcting, one-to-one attention may save months of well-intentioned group attendance.

So compare the two by what you need them to do. Ask how many useful corrections your child will get, how quickly misunderstandings will be spotted, and whether the setting lets your child hide. The hourly rate matters. But it is not the whole sum.