What is the Maths IA?
The Maths Internal Assessment (IA) is an individual mathematical exploration that forms 20% of the final IB Maths grade. It is a 12–20-page written report (excluding bibliography), where the student investigates a mathematical topic of personal interest.
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Time allocation: Students are recommended to spend 10–15 hours on the IA.
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Content includes: Mathematical modeling, data analysis, theoretical proofs, or applications of mathematical concepts.
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Format: Double-spaced, containing explanations, graphs, tables, charts, and appendices.
1. Purpose and Significance of the IA
The IA is more than a writing task—it's a personalized exploration that allows students to:
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Apply mathematical knowledge outside exam constraints.
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Experience real-world applications and personal interests through math.
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Appreciate the beauty, power, and utility of mathematics.
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Develop skills in independent inquiry, problem-solving, and reflection.
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Demonstrate how technology supports mathematical investigation.
Key Takeaway: The IA encourages students to ask their own questions and pursue them using math, shifting from solving textbook problems to creating meaningful explorations.
2. IA Evaluation Criteria (Total: 20 Marks)
Criterion A - Presentation (4)
✓ Clarity
✓ Structure
✓ Coherence of the report | Coherent: Logical flow from start to conclusion; avoids tangents.
Well-organized: Visuals like graphs, formulas, and tables are integrated into the main body at relevant points (not just placed in appendices).
Concise: Avoids repetition and unnecessary content. |
Criterion B - Mathematical Communication (4)
✓ Clear and accurate use of mathematical language and notation | Define key terms, symbols, and variables explicitly.
Avoid calculator-specific notation (like asterisks or “√”).
Use equation editors in Word or LaTeX for professional formatting.
Ensure graphs and figures are labeled and referenced correctly. |
Criterion C - Personal Engagement (3)
✓ Originality
✓ Relevance
✓ Authenticity of the student’s approach | Demonstrate genuine interest and personal connection to the topic.
Show independent thinking through creative approaches or contextual relevance.
Avoid generic or superficial claims of interest; instead, explain your motivation authentically. |
Criterion D - Reflection (3)
✓ Depth of analysis
✓ Critical thinking | Reflect on what you learned, what worked well, and what could be improved.
Consider alternative approaches or limitations of your methods.
Think about the broader implications of your results. |
Criterion E - Use of Mathematics (6)
✓ Mathematical depth
✓ Sophistication
✓ Understanding | Choose a topic that matches the breadth and depth of your course level (SL vs. HL).
Demonstrate understanding by explaining your methods, not just performing calculations.
Use relevant and appropriate mathematics (avoid trivial or oversimplified content). |
3. Role of the School Teacher
Teachers are mentors, not co-authors. According to IB guidelines:
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They may suggest ideas, provide feedback, and flag errors.
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They cannot correct or rewrite any part of the student’s work.
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They may ask probing questions to deepen your thinking or challenge your assumptions.
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They help ensure the IA is the student’s authentic work.
Key Student Responsibilities:
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Take initiative: Drive the project and make decisions.
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Be independent: Consult multiple sources and develop your own reasoning.
Stay
resourceful
: Use available tools and guidance wisely.