Summary of this blog
- A child can know IB Biology well and still receive a 5, because the exam also rewards how that knowledge is applied in the answer.
- Ask your child to explain one revised topic aloud, then answer one past-paper question on the same topic. The difference between the two is the useful part.
- One issue worth watching is the data question: describing a graph without linking it to the biology, or explaining the biology without using the figures.
- At Higher Level, a 5 was one of the most common grades in May 2026, while 7.4% of students received a 7.
- Our UK-based tutors teach IB Biology at Higher and Standard Level, online, at times that fit the Singapore school day.
Your child is revising, but the grade stays at a 5
The notes are thorough. The revision is happening. Ask your child about protein synthesis and they can talk you through transcription and translation without pausing. Then the grade comes back as a 5 again, and it does not match the effort you have watched go in. Whether your child is at Tanglin Trust School, Dover Court, UWCSEA or another school in Singapore, that is often the point where a parent starts looking for an IB Biology tutor in Singapore.
Here is the first thing to hold on to. That grade does not mean the revision was wasted. The grade alone cannot tell you whether the problem is knowledge, recall or how the answer was built, and finding that out matters more than covering the whole topic again.
Your child remembers the content, but the exam asks them to use it
It helps to know what the papers actually ask for. Under the current IB Biology course, first assessed in 2025, the assessment objectives start with knowing the biology and applying it. They also cover analysing, evaluating and synthesising experimental procedures, data, trends and patterns. Paper 1 is split into multiple-choice questions and a set of data-based questions. Paper 2 carries data-based questions, short-answer questions and extended-response questions.
That is why a child can revise thoroughly and still find the paper harder than expected. Recall is necessary, and the marks also depend on using unfamiliar data and shaping an answer to what the question asked.
The results also show where a 5 sits in the wider Biology HL distribution. In the IB’s May 2026 provisional statistical bulletin, 33,585 students took Biology at Higher Level. Of those, 23.2% received a 5, making it one of the most common grades, while 7.4% received a 7 and the mean grade was 4.5. These figures cannot explain why any individual student received a 5. They show only where a 5 sat in the overall Biology HL grade distribution.
Where May 2026 IB Biology HL grades landed
Percentage of the 33,585 Higher Level students who received each grade
A 5 was one of the most common Biology HL grades in May 2026, while 7.4% of students received a 7. The distribution shows where grades landed, and it cannot explain why any individual student received a 5.
Source: IB May 2026 Provisional Statistical Bulletin, page 25. The bulletin also records 1.7% under N, which is not shown in this chart. Percentages may not total 100% because of rounding.
Your child can explain the topic but misses what the question asks
You can see the difference at home in about fifteen minutes. Pick one process your child has already revised, such as respiration, enzymes, membrane transport or inheritance. Ask them to explain it aloud, with the notes closed. Then hand them one past-paper question on the same process, ideally one with a graph, a short block of data, or a command term such as explain, compare, evaluate or suggest.
Try this at home tonight
If both are shaky
Recall may be the gap. The topic may need revisiting before exam technique will make a difference.
If the explanation is strong but the question stalls
Recognising what the question demands may be the gap, rather than the biology itself.
If the biology is right but the data goes unused
The command term or the evidence in the question may be where the marks are going.
If the answer starts well and stops early
The explanation may be missing its linked steps, which is structure rather than missing content.
One question cannot diagnose everything, and it gives you something specific to tell a tutor.
Keep both answers from this week
Run the check on one topic this week and keep what your child said aloud alongside what they wrote. A spoken explanation and a written answer on the same topic give a tutor a more specific starting point than the grade alone.
Your child describes the graph and doesn’t link it back to the biology
One issue is worth knowing about, because it is easy to miss at home and it costs marks in both papers. A data-based question shows a graph or a table your child has not seen before. They read it, they know the biology behind it, and the answer they write does one of the two jobs the question wanted. Sometimes it explains the biology and does not refer to the figures. Sometimes it describes the figures and stops before the biology that explains them.
Kriszta, one of the IB Biology tutors below, teaches the order for those questions:
How an IB Biology tutor approaches graph questions
“I think when they say describe and explain, you describe what you see on the graph and then relate it to biology.
”
Kriszta, IB Biology tutor
Describe what the figures show first, in numbers, and then explain them with the biology, so the answer covers both parts of what was asked.
That two-step order helps the student cover both parts of the question instead of stopping after the description.
Your child explains it out loud, then the written answer loses marks
An IB Biology tutor can read the answer and say where the marks are going. Tell us whether your child sits Higher or Standard Level.
Book a LessonThe grade tells you the result, not what your child should fix next
An IB Biology tutor in Singapore can be useful here for one reason above all. A real answer shows what a grade cannot. School lessons have to cover the course for a whole class. A tutor can compare what one child explains aloud with what they write under exam conditions, then work on the specific difference between the two.
A first lesson can start from a recent answer or past-paper question, which your child can send ahead. The tutor can mark it against the official mark scheme, show where each mark was available and agree what the coming lessons should focus on.
Our tutors teach IB Biology at both Higher and Standard Level and work from your child’s own past papers. You receive a written report after every lesson, and homework reminders are sent by email.
Inside a lesson
This clip is from a real Greenhill Academics lesson, recorded live. It shows a maths lesson on the same shared board your child would use in IB Biology, with the question and the working side by side.
Meet the IB Biology tutors
UK-based IB Biology tutors, teaching online across Singapore
Charlotte · Biological Sciences, Oxford
Charlotte holds a First Class MBiol in Biological Sciences from Balliol College, Oxford, and is now working towards a PhD, teaching IB Biology and Chemistry alongside GCSE and A Level sciences. The lessons cover how an answer is built to match what the question asks.
Kriszta · Biological Sciences, Oxford
Kriszta holds a First Class MBiol from Oxford, finishing in the top ten of a cohort of more than 120, and is now studying for a PhD in Cancer Biology at Cambridge. The teaching covers Biology from GCSE to IB, with a focus on explaining processes step by step in a student’s own words.
Mirsab · Medicine, Cambridge
Mirsab studies Medicine at St Catharine’s College, Cambridge, having specialised in Psychology within the Natural Sciences Tripos, after A*s in Maths, Biology and Chemistry. He teaches Biology and Chemistry across GCSE, A Level and IB, and plans lessons around each student’s own way of working.
IB Biology questions from Singapore parents
How do I find a good IB Biology tutor in Singapore?
Look for a tutor who teaches IB Biology specifically, at your child’s level, and who works from your child’s own answers and past papers rather than general revision. At Greenhill Academics we match each student with a specialist and teach online, which works well for families in Singapore.
My child knows the content. Why is the grade still a 5?
Because the paper also rewards how the knowledge is applied. Marks depend on the command term, on using the data in the question, and on setting out an explanation in linked steps. Those are skills in their own right, and they can be taught directly.
Do you teach both Higher and Standard Level?
Yes. Our IB Biology tutors teach both, and the work differs between them, so tell us which one your child sits when you get in touch and we will match accordingly.
Are your IB Biology tutors based in Singapore?
No. Our tutors are based in the UK and teach online, so your child learns from a specialist while staying at home in Singapore. Lessons can be arranged around the Singapore school day.
Can a tutor help with both IB Biology papers?
Yes. Our tutors can work on multiple-choice, data-based, short-answer and extended-response questions at Higher or Standard Level, using your child’s own past papers and recent answers.
Find out where the IB Biology marks are going
Share a recent answer, or what happened when you asked them to explain it out loud, and whether they sit Higher or Standard Level. We will match them with an IB Biology tutor who can identify what to work on first.
Book a Lesson