MYP Standard Mathematics grading is consistent in its framework, but not always identical in its application. All authorized MYP schools assess mathematics through the same four IB criteria and achievement-level structure. However, schools create and mark most classroom assessments locally, so similar work may receive slightly different internal grades.
The optional MYP Standard Mathematics eAssessment is different. It is set and externally marked by the IB, making official eAssessment results more directly comparable across participating schools.
What is consistent across MYP schools?
The IB overview of MYP assessment explains that teachers assess prescribed subject-group objectives using IB criteria. Mathematics has four equally weighted criteria:
| Criterion | What it assesses |
|---|---|
| A: Knowing and understanding | Selecting and applying mathematics accurately |
| B: Investigating patterns | Identifying patterns, forming rules, and verifying conclusions |
| C: Communicating | Using notation, representations, terminology, and logical organization |
| D: Applying mathematics in real-life contexts | Modelling situations, interpreting results, and evaluating solutions |
Each criterion has a maximum achievement level of 8, producing a total out of 32. Achievement bands such as 1-2, 3-4, 5-6, and 7-8 are defined through IB descriptors rather than invented by individual teachers.
The RevisionDojo explanation of MYP Mathematics criteria examines each criterion in more detail. These criteria matter because MYP Mathematics assesses investigation, communication, modelling, and justification as well as accurate answers.
Why internal Mathematics grades can differ
Most classroom assessment is internal. Teachers design tasks, select content and contexts, judge the evidence, and determine achievement levels through professional judgment.
Differences can arise because:
- schools set tasks of different difficulty
- students receive different scaffolding or preparation
- teachers interpret borderline evidence differently
- criteria are assessed at different stages
- schools add local percentages or letter grades
- local curriculum requirements affect course content
Schools cannot disregard IB criteria. Mathematics departments are expected to standardize their interpretation of the criteria by comparing samples, discussing borderline work, and agreeing what performance at each level looks like.
This improves consistency within a school, but ordinary Mathematics coursework is not externally marked or moderated by the IB. An internal grade 6 at two schools is intended to describe comparable achievement, but it may come from different tasks and has not necessarily received independent verification.
How internal grades are calculated
Teachers review the available evidence for each criterion and determine the level that best represents the student's demonstrated achievement. This is a best-fit judgment, not necessarily an arithmetic average of every score earned during a term.
The four criterion levels are added to produce a total out of 32. Schools using the MYP 1-7 reporting scale then apply the IB boundary guidelines:
| Criterion total | Final MYP grade |
|---|---|
| 1-5 | 1 |
| 6-9 | 2 |
| 10-14 | 3 |
| 15-18 | 4 |
| 19-23 | 5 |
| 24-27 | 6 |
| 28-32 | 7 |
These are criterion-total guidelines, not raw examination percentages. A criterion level 6 does not mean that a student answered 75% of a test correctly. It means the work best matches the relevant level descriptor.
For example, levels of 6, 5, 6, and 5 produce 22 out of 32, which falls within the grade 5 boundary of 19-23. Increasing one criterion by one level would produce 23 and remain a grade 5; increasing it by two levels would produce 24 and cross into grade 6. The RevisionDojo MYP grade-boundary guide explains this conversion further.
Is MYP Standard Mathematics eAssessment consistent?
Yes. Students registered for official MYP eAssessment complete an end-of-course on-screen examination. The IB Mathematics subject brief explains that it assesses knowing and understanding, investigating patterns, and applying mathematics in real-life contexts, with communication assessed throughout.
The process is globally controlled:
- Candidates complete the authorized examination for their session.
- IB-appointed examiners use common markschemes and standards.
- Examiner standardization and quality controls support consistent marking.
- The IB conducts subject-specific grade awarding.
- Results are reported on the 1-7 scale.
A school does not determine the official mark or final grade boundary. This gives eAssessment results stronger cross-school comparability than internally determined grades.
The assessment remains criterion-related rather than norm-referenced. Students are judged against established standards, not placed into grades according to a predetermined percentage distribution.
How eAssessment grade boundaries work
The internal 32-point table should not be applied directly to an on-screen examination mark. Official eAssessment uses subject- and session-specific boundaries that convert raw examination marks into grades.
Subject experts consider how performance corresponds to grade descriptors. Boundaries may change to account for differences in examination demand between sessions. Therefore:
- previous boundaries are not guaranteed to apply again
- Extended Mathematics boundaries cannot be used for Standard Mathematics
- unofficial percentage predictions are not official results
- the confirmed boundary applies consistently to candidates in that session
The IB's eAssessment grading explanation describes how final grading remains criterion-related even though responses initially receive marks. RevisionDojo also provides a guide to MYP eAssessment length and grading.
Internal grade versus official eAssessment
| Feature | Internal school grade | Official eAssessment |
|---|---|---|
| Task created by | School or teacher | IB |
| Marked by | Classroom teacher | IB-appointed examiners |
| Standardization | Within the school | Across the examining system |
| Boundary basis | Total out of 32 and reporting policy | Session-specific IB grade award |
| Official IB course result | No | Yes |
| Comparability | Intended, but not exact | Strongly standardized |
The 2026 MYP general regulations clarify that ordinary school-assessed Mathematics coursework does not contribute to official MYP Course Results. The externally marked examination produces the official Mathematics eAssessment grade.
What students should check
Students should establish whether a reported result is an internal grade, predicted eAssessment grade, or final IB result. These labels are not interchangeable. They should also ask how best-fit levels are determined, which boundary table is used, and whether local percentages have been added.
For external assessment, students should practise the full range of mathematical demands rather than target an assumed percentage. Useful support includes RevisionDojo's MYP Standard Mathematics resources, Mathematics Questionbank, and guide to MYP Mathematics assessment and revision.
Common misconceptions
Every MYP school gives the same test. Schools normally design internal assessments; only official eAssessment candidates complete the standardized IB examination.
A grade 7 always requires the same percentage. Criterion levels are not percentages, while eAssessment boundaries may vary between sessions.
Teachers must average every task. Internal assessment uses best-fit professional judgment against descriptors. A simple average can conceal improvement or combine tasks assessing different criteria.
Internal and eAssessment grades must match. The results use different evidence and marking arrangements, so a difference does not automatically indicate an error.
Conclusion
MYP Standard Mathematics uses common criteria, achievement levels, and a 1-7 reporting scale across authorized schools. Nevertheless, internal grades depend on locally designed tasks and teacher judgments, so complete school-to-school uniformity cannot be guaranteed.
Official eAssessment results are more comparable because the examination, external marking, and grade award are controlled by the IB. Students should identify the type of grade before interpreting it. RevisionDojo's Study Notes, Questionbank, Mock Exams, and Jojo AI can then support focused, criterion-aware preparation.
Sources and referenced URLs
- IB MYP assessment overview
- IB MYP Mathematics subject brief
- IB explanation of MYP eAssessment grading
- IB MYP 2026 general regulations
- RevisionDojo Mathematics criteria guide
- RevisionDojo MYP grade-boundary guide
- RevisionDojo eAssessment examination guide
- RevisionDojo MYP Standard Mathematics resources
- RevisionDojo Mathematics Questionbank
- RevisionDojo Mathematics assessment and revision guide