Biology · IB
IB Biology tutors
IB Biology is the science most often underestimated. Students assume volume of recall is the challenge, and the examinations are in fact testing precision of expression — the difference between describing a process and explaining it is worth more marks than any amount of additional memorising.
Last reviewed 2026-09-21 · 3 cited sources
What the course demands
Biology sits in Group 4 of the Diploma Programme, with Higher Level requiring a minimum of 240 instructional hours and Standard Level 150. The HL extension adds depth in areas such as physiology and genetics where the mechanisms become considerably more detailed.
As with other IB subjects, assessment combines external examinations in the May and November sessions with internal assessment contributing between 20% and 50% of the subject grade, teacher-marked and moderated by the IB.
Command terms decide grades
More than in any other Group 4 subject, IB Biology marks turn on answering the question that was asked. "Outline", "describe", "explain", "discuss", "evaluate" and "distinguish" each require a different structure and a different amount of detail, and each earns a different number of marks.
Students who write everything they know about a topic score poorly against a command term requiring evaluation, because the examiner is looking for a judgement supported by evidence and finds a summary instead. This is learnable in a small number of sessions and is routinely the fastest available grade improvement.
The second recurring loss is data-based questions, where students are asked to interpret an unfamiliar experiment. The skill is reading the axes, identifying what was actually varied and reasoning about what the data can and cannot support. It is a separate skill from content knowledge and needs separate practice.
- Match answer structure to the command term, every time
- Explain mechanisms rather than describe outcomes
- Use precise terminology — approximate language loses marks
- Practise data interpretation separately from content revision
Internal assessment in biology
Biology internal assessments fail most often on scope. Students choose investigations with living material whose variability swamps the effect being measured, or with too few levels of the independent variable to establish a trend.
The decisions that determine the mark are made before any data exists: a research question that is genuinely investigable, a variable that can be controlled in a school laboratory, and enough repetition to say anything about reliability. A tutor is most useful at that design stage and considerably less useful once the data is collected.
Timing and cost
Because biology's main lever is expression rather than content, tutoring works well in short concentrated blocks: a period focused on command terms and answer structure, a block around internal assessment design, and past-paper work in the final term.
That pattern aligns with evidence on one-to-one tuition, which finds optimum impact from short, regular sessions — around 30 minutes, three to five times a week — over a defined period of up to ten weeks, with an average effect of roughly five additional months of progress.
Expect roughly €45 to €100 an hour. Biology tutoring is generally the least expensive of the IB sciences because the supply of qualified tutors is larger. TutorDeluxe lists tutors from €40 an hour and takes no commission.
Verified biology tutors
Indicative range for this subject and level: €45–€100 per hour. Every tutor below passed our verification review before publication.
No biology tutor is published for this level yet.
Our directory is curated rather than comprehensive — a tutor appears only once identity, qualifications, experience and references have all been reviewed. Browse the full directory, or tell us what you need and we will let you know when a match is published.
Common questions
- My child revises constantly and still scores 4s. Why?
- Almost always an expression problem rather than a knowledge problem — answers that do not match the command term, or describe where they should explain. It is diagnosable in one session with a marked past paper and is usually the quickest grade gain available.
- Is IB Biology HL suitable for medical school applications?
- It is commonly taken and widely accepted, but requirements vary by country and institution, and many medical schools specify chemistry. Check the specific entry requirements for the countries being applied to rather than assuming biology alone suffices.
- How much of the grade is internal assessment?
- Internal assessment contributes between 20% and 50% of a subject grade across IB subjects. Your school can confirm the exact weighting for the current biology specification — it is a large enough share to be worth planning around.
Every tutor here has been reviewed.
We verify identity, qualifications, experience and references before a profile is published. Students and parents pay nothing, and we take no commission on lessons.
Read next
IB Chemistry tutors
IB Chemistry rewards students who can connect three representations of the same idea — the molecular picture, the symbolic…
A-Level Biology tutors
A-Level Biology has more content than any other science and is rarely failed on content. It is failed on precision of language,…
UCAT tutors
The UCAT is not a knowledge test and cannot be revised for like one. It assesses aptitude and attitude rather than academic…
IB vs A-Level: how tutoring support differs
Parents often look for "a maths tutor" when what they need is "an IB Mathematics Analysis and Approaches HL tutor" or "an Edexcel…
Sources
Every factual claim above traces to one of these. We link out so you can check us.
- 1.IB Diploma Programme — Wikipedia. Accessed 2026-09-21.
- 2.Diploma Programme — International Baccalaureate Organization. Accessed 2026-09-21.
- 3.One to one tuition — Teaching and Learning Toolkit — Education Endowment Foundation. Accessed 2026-09-21.