Independent IB Maths Tutor vs Agency: A Parent's Guide

A tutoring agency such as TutorChase is a company that recruits many tutors, matches your child with one of them and manages scheduling and billing. An independent IB tutor is a single teacher you contact directly, who designs and teaches every lesson personally. Both can be excellent; they differ in who chooses the teacher, who is accountable and how much continuity your child gets.

How an agency works.

The family describes the need, the agency proposes a tutor from its network and usually offers a replacement if the match does not work. The strength is breadth: one account can cover Maths, Physics, Chemistry and English at once. The variable is the individual tutor, because quality depends on who is assigned, not on the brand.

How an independent tutor works.

You speak to the teacher before the first lesson, the same person reads every piece of homework and the relationship usually lasts the whole IB Diploma, which runs over two school years. The strength is depth and continuity. The limit is capacity: a good independent tutor has a fixed number of slots and often a waiting list before exam season.

What this means for an IB student.

IB Diploma Mathematics comes in two courses, Analysis and Approaches (AA, more algebraic and proof based) and Applications and Interpretation (AI, more statistical and modelling based), each at Higher Level (HL, the more demanding version) or Standard Level (SL). A tutor who is strong in general school maths is not automatically fluent in, say, AA HL Paper 3, a one hour extended problem paper that only HL students sit. That fluency, not the business model, is what you are really buying.

The right choice for IB Maths or Physics depends on what your child needs right now. A student who needs help in several subjects at short notice is usually well served by an agency. A student with a specific, recurring problem in one course, such as Maths AA HL or Physics HL, benefits most from one specialist who follows them across both years.

Situation 1: one weak subject, high stakes.

Your child wants engineering or physics at university and is predicted a 5 in Maths AA HL. On the IB 1 to 7 scale, where 7 is the top grade, that gap matters, because many competitive courses ask for a 6 or 7 in HL Maths. This calls for depth and continuity: one teacher who knows the syllabus and diagnoses why marks are lost.

Situation 2: the internal assessment.

Every IB Maths student writes an exploration, a 12 to 20 page piece of independent mathematics worth 20% of the final grade. In Physics the internal assessment (IA) is a scientific investigation, also worth 20%. Here the tutor must know the marking criteria and the academic honesty rules, and must guide without writing a single line for the student.

Situation 3: broad support across subjects.

If the student is also struggling in Chemistry and English, coordinating four independent tutors is hard work for a parent. An agency's single point of contact has real value in that case.

Situation 4: the last eight weeks before May.

Exam technique on past papers matters most now. Either route can work, but the tutor must already know the current papers and their timings without needing to look them up.

Before booking any IB Maths or Physics tutor, agency or independent, ask four things: which IB courses they teach regularly, how they use past papers and mark schemes, how they support the IA within the rules, and how they will report progress to you. Clear, specific answers are the best predictor of a good tutor.

Questions that separate specialists from generalists.

A specialist answers in IB terms without hesitation. A generalist answers in general terms. These are the questions I would ask in your place:

• Which of AA HL, AA SL, AI HL, AI SL and Physics HL or SL have you taught in the last two years?
• How long are Paper 1 and Paper 2 in my child's course, and is a calculator allowed?
• What will you do, and not do, for the internal assessment?
• How will you tell me whether my child is on track for the predicted grade?

What a good answer sounds like.

For Maths AA, a tutor should know without checking that Paper 1 is taken without a calculator and Paper 2 with a graphic display calculator (GDC), and that HL students sit both papers at two hours each plus Paper 3. For Physics, the current course has two papers, and Paper 1 combines multiple choice with data-based questions.

For the IA, the right answer is: "I explain the criteria, ask questions and comment on structure, but the student writes every word."

A worked example: judging the trial lesson in five steps.

• Step 1: before the lesson, send the tutor one recent test with the teacher's marks.
• Step 2: in the lesson, the tutor should find where marks were lost (method, accuracy, or reading the command word).
• Step 3: the tutor should show your child one short task at exam level, for example finding $\frac{d}{dx}\left(x^2 \sin x\right)$ without a calculator, and watch how the student writes the working.
• Step 4: at the end, you should receive a short written note: the two or three gaps that cost the most marks.
• Step 5: the note should end with a plan tied to dates, such as the mock exams and the IA draft.

If you receive steps 4 and 5 in writing, you have found someone who teaches with a method. If you receive only "it went well", keep looking.

Parents help most with IB Maths and Physics by managing time and asking good questions, not by checking the maths. Know the key dates, ask your child to explain one solved problem aloud each week, and keep the school reports. Extra support is needed when the same gap appears in two consecutive tests or the IA stalls.

What you can do without knowing the subject.

Ask your child to teach you one question from the week's homework in five minutes. If they can explain why each step follows, the understanding is real. If they can only repeat the steps, it is memorised and will not survive a changed exam question. Also ask to see marked tests, not only the grade: the teacher's comments show where marks go.

What not to do.

Do not write or rewrite any part of the IA, even the introduction. The IB treats work that is not the student's own as academic misconduct, and the consequences can include losing the grade in that subject. Do not buy answers to homework either; it hides the gap until the exam reveals it.

Warning signs worth acting on.

• The same topic (for example calculus or vectors in Maths, or electricity in Physics) costs marks in two tests running.
• Your child finishes practice papers with large blank sections, a sign of timing or confidence problems.
• The predicted grade, the grade the school sends to universities before the final exams, is below what the target courses ask for.
• The IA has no clear research question two months before the school deadline.

For more on how predicted grades are set and how they can rise, see how IB predicted grades work.

The best time to start IB Maths or Physics tutoring is the first term of the first year, when gaps are small and cheap to fix. The next best time is before predicted grades are set, usually in the spring of the first year or early in the second. The next step is one assessment lesson with a written diagnosis.

Why timing matters in the IB Diploma.

The Diploma is scored out of 45 points: up to 7 in each of six subjects plus up to 3 for the core (Theory of Knowledge and the Extended Essay). Final exams come at the end of the two years, in May for most schools and November for some. Between those points sit the dates that shape university options: internal mocks, the predicted grades and the IA deadlines.

A realistic sequence for a parent.

• First term of year one: check that the course and level match your child's university plans. Switching from AA HL to a different course is far easier early on.
• End of year one: look at the internal exam results and the first IA topic.
• Start of year two: predicted grades and the IA final draft. This is the window where support changes outcomes most.
• Final months: past papers under timed conditions, with mark scheme review after every paper.

The decision, in one sentence.

If your child needs broad, quick cover across subjects, start with an agency; if the need is IB Maths or Physics in depth over the two years, choose an independent specialist, and in both cases judge the tutor by the written diagnosis after the first lesson. For a plain guide to the structure of the Diploma, read the IB programme explained for parents, and for the IA itself see the IB internal assessment guide.