IB MYP assessment: Criteria, grading & moderation (part 1)

TL;DR

MYP assessment is the IB Middle Years Programme's criterion-related system that measures student work against four published criteria per subject (A, B, C, D), each scored out of 8 and totalling 32. The total converts to a final 1–7 grade using IBO boundaries, protected by school-based marking and IBO moderation so a "7" at one school means the same as a "7" at another.

How MYP assessment actually works

MYP assessment is criterion-related, not norm-referenced. That difference matters. You are not ranking children against each other. You are comparing student evidence to published standards. Across a unit and across a term, teachers collect evidence and make a best-fit professional judgement against the descriptors. The final grade reflects mastery of the criteria, not accumulated points.

Clarity sits at the centre of the system. Students should see the criteria before they begin. They should know what "5–6" work looks like in their subject and what it takes to reach "7–8". When the destination is visible, feedback becomes a direction rather than a mystery. Because transfer matters as much as recall, tasks should invite students to interpret, apply, evaluate, and create, not just memorise.

Think about the strongest classrooms you have visited. The rubric is not hidden. Students can explain where they are and what comes next. Conversations use the language of the descriptors. That is what it looks like when assessment is alive: not a score stuck on a page, but a shared vocabulary for growth.

The goal across every subject group is the same: promote deep understanding of subject content by setting inquiries in real-world contexts, and build critical and creative thinking along the way. MYP assessment is designed to measure four things:

• Understanding and skills that go beyond memorised facts and figures.

• Deep conceptual understanding and transferable skills, the validity principle in practice.

• Learning applied to real-world contexts, the authenticity principle.

• Exactly what has been taught and practised, the targeting principle.

Why is internal assessment important for MYP?

The IB is explicit about the centrality of internal assessment. The heartbeat is school-based and teacher-led. Teachers design the tasks. Teachers mark the work. Teachers use the published criteria for their subject group. Because teachers know their students and their context, tasks can be richly authentic. Feedback is built into the process, not tacked on at the end.

That single sentence is the DNA of the system. Here is what it means in practice:

Teachers design the tasks. Not one-off tests, but authentic performances of understanding: investigations, prototypes, fieldwork, oral commentaries, performances, labs, design challenges. Variety is not decorative; it is how the criteria capture conceptual understanding, skills, and transfer.

Teachers mark against published criteria. "MYP teachers assess the prescribed subject-group objectives using the assessment criteria for each subject group in each year of the programme." Students are assessed for what they can do, rather than ranked against each other.

Evidence accumulates over time. The IB treats assessment as ongoing, not episodic, and integral to teaching and learning. Each stage is informed by the previous one and leads into the next. As evidence builds across a term, the picture of student progress becomes clearer and the final grade more defensible.

Just as important, the MYP keeps a clear line between marking and grading. Many systems blur this. Marking happens on a single task: you apply the descriptor and award a level. Grading happens at reporting time: you look across multiple data points and use professional judgement to decide the overall standard. One is a snapshot. The other is the album. That is why best-fit judgements over time matter: the grade tells the fuller story, not just the arithmetic.

How the criteria work across the eight subject groups

The MYP has eight subject groups: Language and Literature, Language Acquisition, Individuals and Societies, Sciences, Mathematics, Arts, Physical and Health Education, and Design. Every group uses the same four-criterion structure (A, B, C, D), each equally weighted out of 8. What changes is what each criterion focuses on.

A couple of concrete examples. In Language and Literature, the four criteria are Analysing, Organising, Producing Text, and Using Language. In Sciences, they are Knowing and Understanding, Inquiring and Designing, Processing and Evaluating, and Reflecting on the Impacts of Science. Same letters, same scale, subject-appropriate descriptors. That is the design. The structure stays consistent; the focus adapts to the discipline.

A second layer sits on top of the subject criteria: Approaches to Learning (ATL) skills. These are the thinking, communication, self-management, research, and social skills that show up across every MYP subject. Teachers plan for ATL development explicitly, whether it is a science investigation, a literary analysis, or a Design project, and use assessment as a moment for students to reflect on their own growth in those skills.

The MYP Personal Project in Year 5 is where all of this comes together. Students pursue a topic of their own choice, set their own success criteria, and demonstrate the subject knowledge and ATL skills they have built across the programme. It is assessed against published criteria focused on goal-setting, planning, product development, and reflection, and the IB externally validates the school's marking.

How MYP marking stays consistent across schools

MYP marking stays consistent across schools through two parallel mechanisms: standard-setting for external components, and moderation for internal ones. Coordinators ask the question repeatedly if teachers mark locally, how does a "7" at your school mean the same as a "7" somewhere else? and these two mechanisms are the answer.

For external MYP components (on-screen exams, ePortfolios), the IB appoints a Principal Examiner "so the candidate's result does not depend on who marked his or her work." Before any live marking begins, the PE runs a standardisation meeting and seeds, qualifies, and monitors examiners to maintain the standard. Marking stays within a set tolerance that reflects legitimate differences while keeping the bar consistent.

For internally assessed components, moderation is used "to ensure a common standard across all schools" and "a school's marks may be lowered, raised or remain the same." After a statistical comparison between teacher marks and moderator marks on a sample, adjustments are applied so students are treated fairly everywhere.

It is an elegant balance and the core logic behind how MYP assessment stays rigorous and comparable across borders. Schools keep the authenticity and agency of the tasks they design. A global process keeps outcomes comparable. Students benefit twice: once from meaningful classroom assessment, again from a system that protects fairness worldwide.

External validation: The Personal Project and optional eAssessment

Two external pieces sit alongside the school-based system. One is mandatory for every student. The other is optional at the school level.

The Personal Project: Mandatory for every student

In Year 5, every MYP student completes a Personal Project, a sustained, independent exploration leading to a personal and creative outcome. It is more than a capstone. When done well, it becomes the most cherished artefact of a student's secondary career: a public statement of identity as a learner.

To be eligible for the MYP Certificate, students must have participated in the final year of the programme. The school marks the Project against published criteria, and the IB externally validates that marking. Your internal standards are seen and confirmed beyond your walls.

Approaches to Learning skills are central. Students must demonstrate and reflect on ATL growth throughout the process, supported by evidence. Final achievement is officially recorded in the MYP Course Results document.

eAssessment: On-screen exams and ePortfolios (optional)

Schools may register for eAssessment, which leads to the IB-recognised MYP Certificate. It comes in two forms:

• ePortfolios of coursework. In Arts, Design, Physical and Health Education, and Language Acquisition, students submit curated evidence of learning. Teachers mark it. The IB externally moderates.

• On-screen examinations. In Language and Literature, Individuals and Societies, Mathematics, Sciences, and Interdisciplinary Learning, students sit digital exams of 1 hour 45 minutes to 2 hours. These are externally marked. Language Acquisition blends an on-screen exam with an internally assessed speaking component.

If your internal tasks have emphasised analysis, synthesis, and communication, students will find eAssessment familiar. That is the design. Internal and external pieces are not separate. They are one ecosystem. What you value and practise in class transfers directly.

Internal and external: One system, not two

Think of the MYP as a duet. All year, school-based assessment carries the melody: authentic tasks, explicit criteria, multiple opportunities, best-fit judgements. At the end, external components harmonise: the Personal Project, moderated ePortfolios, externally marked on-screen exams.

This design matters. The IB describes the MYP as using "a variety of processes and quality checks to ensure the marks and grades awarded… are reliable, fair and correct," refining those mechanisms session after session. When a school leans into authentic internal tasks, students are naturally ready for eAssessment because the skill profile is the same: interpret, synthesise, evaluate, communicate.

Global contexts hold the MYP together. Each exam session runs around a prescribed global context, announced six months in advance so teachers can weave it into units. The digital components do not sit apart from classroom practice. They extend it.

Commit to the duet and anxiety drops. Teachers stop seeing external assessment as an add-on and start seeing it as the natural extension of good teaching.

Five things MYP coordinators can do this term

1. Make criteria visible early and often. If students can paraphrase the strands, their work changes. The most powerful sentence in an MYP classroom is "Here is what success looks like."

2. Map coverage by criterion and strand. Across a term, plan more than one opportunity for each strand in A to D. Do not rely on one big task. This keeps best-fit judgements credible and evidence balanced.

3. Design for variety. Rotate written, oral, practical, creative, and digital modes. Diversity of evidence improves both validity and reliability.

4. Keep exemplars and annotations. Archive a few annotated samples at key levels. They speed up calibration and keep marking consistent when students move between classes.

5. Name the why with students. When learners understand assessment is about growth, not gatekeeping, they engage differently. Reflection deepens, and the Personal Project feels like the culmination of a story, not a hoop.

Three anchors for MYP leaders

Leaders often hold two anxieties at once. Are we faithful to the IB? Is this sustainable for teachers? The answer can be yes if you hold to three anchors.

Authenticity first. If tasks are worth doing for their own sake, students lean in, evidence improves, and moderation conversations get easier. Authenticity is the engine.

Clarity beats complexity. Share criteria up front and echo descriptor language in feedback. The clearer we are, the less we need to push quality from the outside.

Systems serve people. Use trackers, exemplars, calendars, and short calibration moments to remove friction, not to add reporting overhead. When the system works, assessment becomes a rhythm rather than a scramble.

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Key takeaways

• MYP assessment is criterion-related, not norm-referenced. You compare student work to published descriptors, not to other students.

• Four criteria (A, B, C, D), each out of 8, totalling 32 per subject. Subject focus varies, the structure is constant.

• Marking and grading are different decisions. Marking is the single-task snapshot; grading is the multi-task best-fit judgement at reporting time.

• The IB ensures cross-school fairness through standard-setting (external) and moderation (internal). A "7" at one school means a "7" at another.

• The Personal Project is mandatory for every Year 5 student. eAssessment is optional but is the pathway to an IB-validated MYP Certificate.

• Coordinators who make criteria visible, design for variety, and keep exemplars get the strongest moderation outcomes.