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IB Internal Assessment (IA) Guide

A plain guide to internal assessment: what it is, how it is marked and how to approach it.

Read the FAQs

What an internal assessment is

1

An internal assessment, or IA, is coursework you complete during the course. Your teacher marks it and the IB moderates a sample to keep marking consistent across schools.

2

Most Diploma subjects include an IA, and the form varies: an investigation, an exploration, an oral, a portfolio or a report.

Why it matters

The IA counts toward your final grade in the subject, and unlike an exam you can plan it, draft it and revise it. That makes it a good place to secure marks early.

It also builds the research and writing habits that the Extended Essay needs.

How to approach any IA

  1. Read the criteria first, since they describe what each level of achievement looks like. Choose a topic you are curious about, plan the work in stages and leave time for feedback and revision.

Common mistakes

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Common mistakes include a topic that is too broad, writing before checking the criteria and leaving analysis until the last minute. Another is not showing your own thinking clearly.

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Reviewing a draft against the criteria shows where marks are missing.

How a tutor can help

  1. A tutor can help you shape a focused question, plan the method or structure and review a draft against the criteria. The work must remain your own, and your teacher remains your first point of contact.
  2. Tell us your subject and deadline and we will help you find a suitable tutor.

Frequently asked questions

Who marks the IB internal assessment?

Your teacher marks it, and the IB moderates a sample from each school.

Do all IB subjects have an IA?

Most Diploma subjects include an internal assessment, but the form differs by subject.

Can a tutor do my IA for me?

No. A tutor can explain the criteria and review your plan and draft, but the IA must be your own work.

Plan your IB core work

Share your subject, your topic idea and your deadlines through the consultation form and our team will help you find a suitable tutor.