The MYP grade boundary system converts evidence of achievement into a final grade from 1 to 7. In school-based assessment, teachers determine achievement levels for four subject criteria, each scored from 0 to 8, add them to obtain a total out of 32, and apply the standard grade boundaries.
Official MYP eAssessment also reports grades from 1 to 7, but it uses an IB awarding process linked to the subject, assessment format, and examination session. This distinction prevents students from incorrectly applying classroom boundaries to official examination marks.
How the MYP grade boundary system works
MYP assessment is criterion-related. A student's work is judged against published descriptions of achievement, rather than ranked against classmates or adjusted to produce a predetermined distribution of grades.
Every MYP subject group has four assessment criteria, usually labelled A, B, C, and D. Their focus varies by subject: a criterion might assess knowledge and understanding, investigation, communication, evaluation, or the creation of a product.
Each criterion has achievement levels from 0 to 8. Descriptors are normally organized into the bands 1--2, 3--4, 5--6, and 7--8. Level 0 means that the work has not reached a standard described by the first band.
Teachers follow four main steps:
- Gather sufficient evidence for all four criteria.
- Determine the most appropriate level from 0 to 8 for each criterion.
- Add the four final levels to obtain a total out of 32.
- Convert that total into a final grade from 1 to 7.
The calculation is:
This is a criterion-level total, not a percentage score. A result of 24 out of 32 should not simply be interpreted as 75 percent because the levels describe the quality and complexity of demonstrated performance.
Standard MYP grade boundaries for school assessment
The commonly used boundary guidelines for converting a four-criterion total are:
| Criterion-level total | Final MYP grade | General interpretation |
|---|---|---|
| 1--5 | 1 | Very limited achievement |
| 6--9 | 2 | Limited achievement with significant gaps |
| 10--14 | 3 | Acceptable achievement and basic understanding |
| 15--18 | 4 | Good-quality work and understanding of most concepts |
| 19--23 | 5 | Generally high-quality work with secure understanding |
| 24--27 | 6 | High-quality work showing extensive understanding |
| 28--32 | 7 | High-quality, frequently innovative and independent work |
A total of 0 represents no achievement against the assessed objectives and falls outside the normal 1--7 ranges shown above. Schools should follow current IB documentation and their reporting policies when recording this exceptional result.
The boundaries are not percentage thresholds. Although 28 is mathematically 87.5 percent of 32, students do not need to earn 87.5 percent on every task to receive a grade 7. Teachers instead match work to qualitative descriptors and then combine the final criterion levels.
RevisionDojo's guide to the MYP 1--7 grading scale provides additional context for interpreting each final grade.
Worked MYP grade calculation
Suppose a science student receives these final criterion judgments:
| Criterion | Final achievement level |
|---|---|
| A | 6 |
| B | 5 |
| C | 7 |
| D | 6 |
| Total | 24 out of 32 |
The calculation is:
A total of 24 falls within the 24--27 boundary, producing a final MYP subject grade of 6. If Criterion B increased from 5 to 6, the total would become 25, but the final grade would remain 6.
Similarly, levels of 6, 6, 7, and 8 total 27, which is still a grade 6. One additional criterion point would reach the grade 7 boundary, provided the higher level were supported by evidence matching the relevant descriptor. Grades are not rounded upward merely because a student is close to a boundary.
Why criterion grades are not averages of task scores
Teachers should not automatically calculate the arithmetic mean of every criterion score awarded during a term. They make a professional judgment about the level that best represents the student's demonstrated achievement, using sufficient and appropriate evidence.
For example, scores of 3, 5, and 7 for Criterion C do not automatically produce a final level of 5. The teacher also should not automatically select the latest or highest result. The important question is which descriptor most accurately represents achievement at the reporting point.
This best-fit judgment matters because assessments can differ in complexity, scope, and reliability. A recent comprehensive task may provide stronger evidence than a short early exercise, but improvement alone does not guarantee that the highest observed level becomes the final result.
Schools must provide enough opportunities to assess every criterion. RevisionDojo's explanation of MYP criteria and student grading can help students connect rubric feedback to final reporting.
Classroom boundaries and MYP eAssessment
The standard out-of-32 table explains school-based reporting, but official MYP eAssessment boundaries are determined through an IB grade-awarding process. Applying the classroom table directly to an on-screen examination's raw mark can produce an inaccurate prediction.
The IB's MYP assessment overview identifies two main formats:
- On-screen examinations, externally marked by IB examiners
- ePortfolios, internally marked and externally moderated
On-screen examinations produce a raw mark total. Although they are designed around four equally weighted assessment criteria, the final boundary is applied to the examination's mark scale rather than automatically converting the result into the familiar classroom total out of 32.
ePortfolios use criterion-based judgments, with external moderation checking whether the school's marking meets the required international standard. The IB then determines subject-specific boundaries for the relevant assessment session.
The official MYP awards brief explains that awarding uses raw marks for on-screen examinations or criterion-level totals for ePortfolios. Boundaries may therefore differ by subject, assessment format, and session.
Why eAssessment boundaries can change
A boundary is intended to preserve the meaning of a grade when assessments differ in difficulty. Requiring exactly the same raw mark every session could make the standard inconsistent if one paper offered more demanding opportunities than another.
Subject experts review candidate evidence against grade descriptors to identify minimum standards for key grades. This remains criterion-related awarding, not simply grading students on a curve. Coordinators must use the official boundary information for the correct subject and session.
Students can use the 30-day MYP eAssessment study plan and MYP eAssessment preparation guide, while treating previous boundaries only as planning references.
How grades contribute to the MYP Certificate
Official MYP course results report a grade from 1 to 7 for each completed eAssessment component. For the full MYP Certificate, eight equally weighted component grades contribute to a maximum of:
The IB's current grading and awards requirements state that a certificate candidate must:
- Obtain at least 28 points out of 56 overall
- Earn at least grade 3 in every required eAssessment component
- Meet the school's expectations for community service, generally through service as action
These conditions operate together. Eight grades of 4 produce 32 points and satisfy both numerical requirements. Grades of 7, 5, 4, 4, 3, 3, 3, and 2 total 31, but the grade 2 prevents the candidate from meeting the minimum-component requirement.
RevisionDojo's MYP Certificate guide explains the distinction between individual course results and the full certificate.
Common mistakes with MYP grade boundaries
- Treating a criterion level as a final grade: A level 7 for Criterion A is only one of four judgments, not a final subject grade 7.
- Averaging the four levels: Criterion levels are added before the boundary table is applied. Dividing by four produces a number with no official role in the conversion.
- Converting every level into a percentage: Criterion descriptors measure demonstrated quality, not simply the proportion of marks earned.
- Assuming every task assesses all criteria: Individual tasks may assess only one or two criteria, although final reporting requires sufficient evidence across all four.
- Using classroom boundaries for official examinations: On-screen eAssessment raw marks require the subject- and session-specific IB boundaries.
Practical advice for students and schools
Students should track performance criterion by criterion. After receiving feedback, identify the descriptor feature that was missing, such as justification, evaluation, accurate terminology, or application in an unfamiliar context.
Schools should clearly distinguish task-level scores, final criterion levels, totals out of 32, school-awarded grades, and externally validated eAssessment results. A published reporting policy also prevents misunderstandings about averaging, rounding, and incomplete evidence.
The RevisionDojo MYP grade-boundary guide provides further interpretation. Questionbank practice, Study Notes, and Jojo AI can then help students target the knowledge and skills identified in rubric feedback.
Conclusion
The MYP grade boundary system combines four criterion levels into a total out of 32 and converts that total into a school grade from 1 to 7. Official eAssessment uses the same final scale but applies subject- and session-specific awarding procedures.
Students should focus on meeting criterion descriptors rather than chasing percentages. RevisionDojo's MYP Study Notes, Questionbank, and Jojo AI can support targeted practice based on those criteria.
Sources and referenced URLs
- IB MYP assessment overview
- IB MYP grading and awards
- IB MYP awards brief and grade descriptors
- RevisionDojo MYP grade-boundary guide
- RevisionDojo MYP grading scale guide
- RevisionDojo guide to MYP criteria
- RevisionDojo MYP eAssessment study plan
- RevisionDojo MYP eAssessment preparation guide
- RevisionDojo MYP Certificate guide
