If you are asking who marks MYP Extended Mathematics, the answer depends on the assessment. Classroom tests, investigations, projects, and mock examinations are normally marked by your school’s mathematics teachers. The official MYP Extended Mathematics on-screen eAssessment, however, is marked externally by trained examiners appointed by the International Baccalaureate.
The school prepares candidates and supervises the examination, while the IB manages external marking and the grade-award process.
Who marks MYP Extended Mathematics?
| Assessment type | Who normally marks it? | Official IB eAssessment result? |
|---|---|---|
| Classroom test or investigation | Mathematics teacher | No |
| School summative assessment | Mathematics teacher | No |
| Mock eAssessment | Teacher or mathematics department | No |
| Official on-screen examination | IB-appointed examiners | Yes |
According to the IB’s MYP assessment overview, on-screen examinations are externally marked by trained IB examiners. Extended Mathematics is listed as an on-screen examination subject, not an ePortfolio subject.
An examiner may be an experienced teacher or another qualified subject specialist, but they act in an IB-appointed role. Your teacher can assess classwork and provide feedback or predicted information, but does not decide the official Extended Mathematics eAssessment mark.
External marking is not moderation
Students sometimes use “moderation” to describe any IB checking, but the distinction matters. Extended Mathematics responses are individually and externally marked, meaning examiners award marks directly to each candidate’s submitted work.
Moderation works differently. Teachers mark specified ePortfolio work first, after which the IB reviews samples to check whether the school applied the standard appropriately. The IB’s eAssessment Q&A document distinguishes Mathematics and Extended Mathematics as individually marked on-screen assessments.
- External marking: an IB examiner marks the examination responses.
- External moderation: the teacher marks first and the IB checks the school’s standard.
- Extended Mathematics eAssessment: external marking applies.
How the marking process works
Candidates complete the assessment through the IB’s on-screen examination system. Examiners apply the authorized markscheme and award marks for the mathematical evidence in each response.
The examination draws on four MYP Mathematics criteria:
- Criterion A: Knowing and understanding
- Criterion B: Investigating patterns
- Criterion C: Communicating
- Criterion D: Applying mathematics in real-life contexts
These criteria shape the examination, but responses are marked against task-specific requirements. A correct final answer may not receive every mark if the question also requires working, justification, interpretation, or clear communication. The RevisionDojo guide to MYP Mathematics assessment explains how the criteria translate into response skills.
Following marking and grade award, the IB reports a final subject grade from 1 to 7. A teacher’s predicted or internal grade does not replace the official result, as explained in the guide to whether MYP Extended Mathematics marks matter.
MYP Extended Mathematics eAssessment logistics
The school and IB have separate responsibilities. The school registers candidates, prepares devices, arranges approved access provisions, supervises the examination, maintains security, and completes submission procedures. The IB provides the assessment materials and system, appoints examiners, oversees marking, and issues results.
Extended Mathematics is currently a two-hour on-screen examination offered in May and November. Public IB information lists it as available in English and French, although candidates should confirm session-specific details with their coordinator. The IB registration page covers registration and inclusive access arrangements.
Coordinators should consult current Programme Resource Centre materials rather than procedures from earlier sessions. The IB’s starting with eAssessment guidance identifies subject guides, blueprints, specimens, markschemes, and subject reports.
What happens on exam day?
On MYP Extended Mathematics exam day, invigilators maintain secure examination conditions, provide permitted materials, and follow official procedures if a technical problem occurs. They do not explain questions, correct responses, or assign marks.
Local arrangements such as arrival times, room layout, and device setup may vary, so follow your coordinator’s instructions. The guide to MYP eAssessment duration and 30-day MYP eAssessment study plan can help you practise under realistic time limits.
How to prepare for external marking
Teacher feedback remains valuable because it reveals whether your working, notation, generalization, and interpretation are clear enough for an examiner to credit.
A practical routine is to:
- Review the underlying method.
- Complete a timed, on-screen-style question.
- Show every necessary step clearly.
- Check that you answered the command term.
- Compare your response with feedback or the markscheme.
- Rewrite weak reasoning rather than only reading the solution.
The MYP Extended Mathematics lessons can address content gaps, while the Extended Mathematics Questionbank provides targeted practice. Aim to produce work that any trained examiner can follow and reward consistently.
Conclusion
School-based MYP Extended Mathematics assessments are normally marked by teachers, while the official on-screen eAssessment is externally marked by IB-appointed examiners. The school administers the examination but does not assign its official marks.
Ask your coordinator about local procedures and use current IB documentation for formal rules. RevisionDojo’s Extended Mathematics lessons, Questionbank, and timed practice can help you present clear, creditworthy reasoning.
Sources and referenced URLs
- IB MYP assessment and examinations overview
- IB on-screen examinations information
- IB registration information
- IB guidance on starting with eAssessment
- IB MYP eAssessment Q&A
- RevisionDojo Extended Mathematics lessons
- RevisionDojo Extended Mathematics Questionbank
- RevisionDojo MYP Mathematics assessment guide
- RevisionDojo guide to MYP Extended Mathematics marks
- RevisionDojo guide to MYP eAssessment duration
- RevisionDojo 30-day MYP eAssessment study plan
