IB Tutoring Academy
IB Mathematics Internal Assessment

IB Math IA Support

The IB Mathematics Internal Assessment is a written exploration that counts for a fixed portion of the final grade in both Analysis and Approaches and Applications and Interpretation. It asks you to investigate an area of mathematics that interests you, communicate your reasoning clearly, and demonstrate personal engagement.

Read the FAQs

What the IB Math IA Is

The Internal Assessment is a single piece of coursework completed during the Diploma Programme. It is internally marked by your teacher and externally moderated by the IB. The task is the same for both mathematics courses: a written exploration that shows mathematical understanding, clear communication, and personal engagement.

Because the IA carries a fixed weight, it offers a reliable opportunity to secure marks before the final examinations. Students choose their own focus, which means the work can reflect genuine curiosity rather than a prescribed syllabus topic.

How the IA Is Assessed

  1. Criterion A: PresentationExaminers use five criteria, each worth a specific number of marks. Understanding the descriptors helps you shape the exploration from the start. The criteria reward mathematical accuracy, logical structure, and the quality of your communication as much as the sophistication of the mathematics itself.
  2. Criterion B: Mathematical communicationA well-organised exploration that meets the expectations of each criterion typically scores higher than a technically advanced piece that is difficult to follow.
  3. Criterion C: Personal engagementExaminers use five criteria, each worth a specific number of marks. Understanding the descriptors helps you shape the exploration from the start. The criteria reward mathematical accuracy, logical structure, and the quality of your communication as much as the sophistication of the mathematics itself.
  4. Criterion D: ReflectionA well-organised exploration that meets the expectations of each criterion typically scores higher than a technically advanced piece that is difficult to follow.
  5. Criterion E: Use of mathematicsExaminers use five criteria, each worth a specific number of marks. Understanding the descriptors helps you shape the exploration from the start. The criteria reward mathematical accuracy, logical structure, and the quality of your communication as much as the sophistication of the mathematics itself.

Choosing a Suitable Topic

Match topic to your current mathematical toolkitPrefer depth over breadthEnsure personal interest and engagementCheck data availability or modelling feasibilityConfirm the topic meets criterion expectations

Structuring the Exploration

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Introduction with aim and rationale

A coherent structure guides the reader through your mathematical journey. The exploration should read as a continuous narrative, not a collection of disconnected calculations. Each section serves a clear purpose in developing the investigation.

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Background knowledge and definitions

Tutors review outlines and early drafts to ensure the flow serves the argument and that no required element is missing.

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Methodology or approach explanation

A coherent structure guides the reader through your mathematical journey. The exploration should read as a continuous narrative, not a collection of disconnected calculations. Each section serves a clear purpose in developing the investigation.

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Mathematical development and analysis

Tutors review outlines and early drafts to ensure the flow serves the argument and that no required element is missing.

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Results, interpretation, and reflection

A coherent structure guides the reader through your mathematical journey. The exploration should read as a continuous narrative, not a collection of disconnected calculations. Each section serves a clear purpose in developing the investigation.

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Conclusion summarising findings

Tutors review outlines and early drafts to ensure the flow serves the argument and that no required element is missing.

Mathematical Communication and Presentation

Define all notation at first use

Clear notation, consistent terminology, and well-labelled diagrams are assessed directly under Criteria A and B. Graphs, tables, and equations should be integrated into the text, not appended as afterthoughts. Technology output must be explained, not just displayed.

Label every figure, table, and graph

Attention to presentation details — page numbering, citation style, legible fonts — supports the overall impression of a polished exploration.

Explain technology outputs in your own words

Clear notation, consistent terminology, and well-labelled diagrams are assessed directly under Criteria A and B. Graphs, tables, and equations should be integrated into the text, not appended as afterthoughts. Technology output must be explained, not just displayed.

Use consistent referencing for sources

Attention to presentation details — page numbering, citation style, legible fonts — supports the overall impression of a polished exploration.

Maintain clear paragraph and section structure

Clear notation, consistent terminology, and well-labelled diagrams are assessed directly under Criteria A and B. Graphs, tables, and equations should be integrated into the text, not appended as afterthoughts. Technology output must be explained, not just displayed.

Common Challenges Students Face

Typical pitfalls

  • Scope too wide for page limit
  • Insufficient personal engagement shown
  • Reflection treated as an afterthought
  • Mathematical errors in key steps
  • Poor time management across drafts
  • Formatting inconsistencies

How awareness helps

  • Many students underestimate the time needed for drafting, revising, and formatting. Others choose topics that are too broad, rely on copied methods without understanding, or leave reflection to the last minute. These patterns appear across schools and sessions.
  • Awareness of these pitfalls helps you plan checkpoints and seek feedback before they become structural problems.

How Our Tutors Support the IA Process

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Initial consultation to map the process

Support begins with a consultation to understand your course, timeline, and initial ideas. From there, tutors provide structured feedback at each milestone: topic approval, outline review, first draft comments, and final draft polish. The focus is on developing your mathematical voice and ensuring the exploration meets the assessment criteria.

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Topic feasibility and criterion alignment check

All guidance follows IB academic integrity policy; tutors do not write or edit the exploration for you.

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Outline and structure feedback

Support begins with a consultation to understand your course, timeline, and initial ideas. From there, tutors provide structured feedback at each milestone: topic approval, outline review, first draft comments, and final draft polish. The focus is on developing your mathematical voice and ensuring the exploration meets the assessment criteria.

4

First draft review against all five criteria

All guidance follows IB academic integrity policy; tutors do not write or edit the exploration for you.

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Final draft polish for communication and presentation

Support begins with a consultation to understand your course, timeline, and initial ideas. From there, tutors provide structured feedback at each milestone: topic approval, outline review, first draft comments, and final draft polish. The focus is on developing your mathematical voice and ensuring the exploration meets the assessment criteria.

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Academic integrity maintained throughout

All guidance follows IB academic integrity policy; tutors do not write or edit the exploration for you.

Suggested Timeline and Milestones

  1. Term 1: Topic selection and proposalA realistic calendar spreads the work across the academic year so the IA does not clash with other internal deadlines. Starting early gives time for genuine exploration and multiple revision cycles. The timeline below aligns with typical school submission windows.
  2. Term 1–2: Research and outline developmentAdjust the dates to match your school's internal deadlines and examination session.
  3. Term 2: First full draft completionA realistic calendar spreads the work across the academic year so the IA does not clash with other internal deadlines. Starting early gives time for genuine exploration and multiple revision cycles. The timeline below aligns with typical school submission windows.
  4. Term 2–3: Teacher feedback and revisionAdjust the dates to match your school's internal deadlines and examination session.
  5. Term 3: Final draft polishing and submissionA realistic calendar spreads the work across the academic year so the IA does not clash with other internal deadlines. Starting early gives time for genuine exploration and multiple revision cycles. The timeline below aligns with typical school submission windows.
  6. Buffer time for unexpected delaysAdjust the dates to match your school's internal deadlines and examination session.

Getting Started with IB Tutoring Academy

Begin with a consultation so we can understand your course, timeline, and current progress. The form captures the information tutors need to prepare relevant guidance from the first session. You will receive a clear plan for the next steps after the consultation.

IB Tutoring Academy offers online tutoring from experienced subject tutors, with a consultation form to get started.

FAQ

Does the IA format differ between Analysis and Approaches and Applications and Interpretation?

No. The Internal Assessment task, criteria, and weight are identical for both mathematics courses.

How long should the exploration be?

The IB provides page guidance. Quality and conciseness matter more than length.

Can I use a topic from a textbook or past paper?

You may draw inspiration from any source, but the exploration must show your own mathematical development and personal engagement to score well on Criteria C and D.

When should I start working on the IA?

Most schools expect a proposal in the first year of the Diploma Programme and a final draft in the second year. Starting early allows time for revision.

Will a tutor write the IA for me?

No. Tutors provide feedback and guidance at each stage. The work you submit must be your own in line with IB academic integrity policy.

What if my school has an earlier internal deadline?

Share your school's timeline during the consultation. The tutor will adjust the milestone plan to fit your deadlines.

Start Your IB Math IA with Confidence

Book a consultation to map your timeline, test your topic idea, and get structured feedback from outline to final draft.