What is Full Subject Based Banding | FullSBB Can Students Take the Same Subject at G2 and G3? SEC 2027 Rules

Different levels across subjects are allowed

Full SBB recognises that a student’s strengths can differ from one discipline to another. A student might study English at G3, Mathematics at G2, and another subject at G1 or G2 according to readiness and the school’s offer. That is a mixed subject-level profile.

This is not unusual or contradictory. English language development, mathematical abstraction, scientific reasoning and Humanities analysis rely on overlapping but different knowledge. The child can be ready for a more demanding course in one subject while benefiting from a different level in another.

The SEC certificate reflects each subject and its level. It therefore records the student’s actual combination rather than assigning one whole-student G level to every subject.

But not two G levels of the same subject

SEAB’s official SEC FAQ makes the boundary explicit: students can sit different subject levels, such as some subjects at G3 and others at G2, but not different levels for the same subject. This means the same student does not register for G2 Mathematics and G3 Mathematics concurrently as two separate examination entries.

It also prevents the assumption that a family should enter both levels “just in case” or use the two results to choose a better one afterwards. School candidates are registered according to the actual subject arrangement approved by the school. A candidate’s registration is not a personal trial of every level available in the national directory.

Where a student changes level during secondary schooling, the school manages the change at the appropriate juncture. The student then studies and is registered for the relevant level at the examination, rather than sitting two levels of the same subject on the same certificate.

Why the distinction matters when reading subject codes

Consider English Language: G1 K100, G2 K200 and G3 K300. These are not three separate English subjects to be stacked. They are level-specific versions of the same named subject. Similarly, Mathematics has G1 K110, G2 K210 and G3 K310, while Additional Mathematics has its own G2 and G3 codes.

A family using the national subject-code directory should begin with the child’s school allocation. Write down the single English code actually offered, the single Mathematics code actually offered, and the other subjects the student is registered to take. Only then should you download the corresponding syllabus.

This avoids buying books for a level the child is not studying or mistakenly counting the same subject twice in a post-secondary aggregate.

How a student may change a subject level before SEC

Subject-level progression and the final SEC examination entry are separate stages. Schools review learning at designated junctures, with the student’s demonstrated work, interest, readiness and total workload relevant to a more demanding level offer. A student may also need a less demanding course if the overall demands are not sustainable.

It is not a parent-created examination option. A family should speak with the subject teacher and ask about the school’s current review points, criteria and any bridging content. If the school approves a change, it will explain the new learning arrangement and record the appropriate course.

Do not promise a child that one high score will automatically move them from G2 to G3. Equally, do not tell them that the first Secondary 1 offer fixes their level permanently. Full SBB is intended to support appropriate progression, but the school applies its process.

Example: G3 English and G2 Mathematics

A pupil is offered G3 English and G2 Mathematics. The student uses the G3 English syllabus and G2 Mathematics syllabus and prepares for the matching paper codes. Their certificate can show both results with their respective levels.

The pupil does not need to sit G2 English as well simply because the student takes G2 Mathematics. The level is specific to each subject, not an overall label shared by the whole candidate.

This example is the clearest way to explain Full SBB to relatives who still expect a student to be “all Express” or “all Normal Academic”. The student is learning different subjects at levels that match the relevant school offer.

Example: can a student take G2 Science and G3 Science?

No, not as two different SEC entries for the same Science subject in the same examination. The student takes the registered Science route and level. The details differ by the Science combination: for instance, a G2 combined Science subject is a named syllabus with a particular pairing of disciplines, while G3 can have combined Science and separate Physics, Chemistry and Biology options.

Do not confuse a combined Science choice with a second level of the same paper. G2 Science (Physics, Chemistry) K223 and G3 Science (Physics, Chemistry) K326 are two syllabus-level alternatives, not two entries the same candidate should automatically take together.

Some G3 separate Science subjects are additional, distinct subjects and can be offered in a subject combination where the school approves it. Whether a learner can take separate subjects as well as another Science entry depends on the school’s actual combination and exam registration, not on the fact that their names share the word “Science”.

What does the certificate show?

SEAB says the SEC certificate reflects the subjects and subject levels taken by the student. It is a single examination certificate across the candidate’s mixed-level subjects. It does not convert the student’s entire record into one G1, G2 or G3 certificate according to their original Posting Group.

The grade structures also differ: G1 uses A–E, G2 uses grades 1–6 and G3 uses A1 through 9. The grade should always be read beside the subject title and level.

A result mapping may be used later for specified post-secondary aggregate calculations, but mapping does not change the original subject and grade shown on the certificate. It is not an extra second-level subject result.

Mistakes parents make with mixed G-level entries

1. Assuming a PG2 pupil must take all subjects at G2 forever.
2. Downloading all three level syllabuses for every subject without checking the actual school offer.
3. Counting G2 Mathematics and G3 Mathematics as two separate examination subjects.
4. Assuming a high internal mark automatically changes the SEC registration.
5. Mixing up separate Physics/Chemistry/Biology entries with a combined Science entry.
6. Using a G3-to-G2 mapping as if it awarded a second examination grade.

Each mistake begins with treating a national code directory as a menu for one child. It is actually a catalogue of available syllabuses. The child’s school-approved course combination determines what applies.

Questions to ask the school

• Which exact subject title and G-level code is my child taking?
• Is the offer for the current year or a future upper-secondary subject combination?
• When does the school review a possible move to a more demanding level?
• What evidence and prerequisites are used for that decision?
• What bridging or support is available if the student changes levels?
• Which official booklist and syllabus should the family use?

Ask for the written subject combination or timetable where possible. This is more reliable than inferring a child’s level from the Posting Group or from the list of books used by a friend.

Frequently asked questions

Can a student take G3 English and G2 Mathematics?

Yes. Those are different subjects, so a mixed-level profile is permitted where offered.

Can a student take both G2 and G3 English?

No. SEAB says candidates cannot take different levels for the same subject.

Can a student sit both G2 and G3 Mathematics to see which grade is better?

No. The school registers the student for the approved Mathematics level.

Can a student change from G2 to G3 before the SEC?

A school may review subject-level offers at appropriate junctures under its criteria. It is not an automatic pupil-selected examination entry.

Does the original Posting Group control every SEC subject?

No. Subject levels can differ within the student’s approved combination.

Will the SEC certificate show a single overall G-level?

It reflects the subjects and levels the student actually took.

Official sources and further eduKate reading

Official explanation: SEAB confirms that students may combine different G levels across different subjects, but cannot offer the same subject at different levels. The final registration is handled by the school for school candidates.

• SEAB — same subject cannot be taken at multiple G levels
• SEAB — SEC subjects, levels, certificate and grading
• SEAB — G1 2027 school candidate syllabuses
• SEAB — G2 2027 school candidate syllabuses
• SEAB — G3 2027 school candidate syllabuses
• eduKate — complete SEC subject code directory

Next action: confirm the child’s actual subject level and school instructions, then use the corresponding SEAB syllabus and current examination notice. Do not rely on an old timetable, a generic grade chart or another student’s subject combination.