IB Math IA Grader — Free AI Feedback on Your Exploration

IBLens grades your IB Mathematics Internal Assessment (Exploration) against the official IB Math IA rubric — all five criteria — in 60 seconds. Works for both Mathematics: Analysis and Approaches (AA) and Mathematics: Applications and Interpretation (AI). A free preview is included; the full report is $4.99.

IB Math IA rubric: five criteria (20 marks)

• Criterion A — Presentation (0–4 marks): The organisation and coherence of your exploration. IBLens checks whether your exploration has a clear aim, is logically structured, and reads as a coherent whole.
• Criterion B — Mathematical communication (0–4 marks): Correct and consistent mathematical language, notation and representation — variables, functions, equations, graphs and tables, with key terms defined. IBLens checks your notation throughout.
• Criterion C — Personal engagement (0–3 marks): Evidence of independent thinking, creativity and genuine personal interest — your own conjectures and unexpected directions rather than reproduced textbook content.
• Criterion D — Reflection (0–3 marks): Critical reflection on the significance of your results, the limitations of your approach, and possible extensions. IBLens checks whether your reflection is genuinely critical or merely descriptive.
• Criterion E — Use of mathematics (0–6 marks): Relevant mathematics commensurate with the level of the course, used correctly; the top levels of this criterion have separate SL and HL descriptor ladders, with HL additionally demanding sophistication and rigour.

Common IB Math IA mistakes IBLens catches

• Textbook-style exploration: Reproducing mathematical results from a textbook without personal investigation. Examiners look for your own mathematical journey — conjectures, dead ends, and discoveries.
• Mathematics too simple for HL/SL level: Using arithmetic or basic algebra when your syllabus level requires calculus or statistics. The Use of Mathematics criterion expects sophistication appropriate to your course.
• No clear aim: Starting without stating what mathematical question you are exploring and why. The Communication criterion requires a clear, concise aim in your introduction.
• Generic reflection: Writing "my exploration had some limitations" without specifying what those limitations were and how they affected your results or conclusions.
• Computational errors: Arithmetic or algebraic errors that undermine your conclusions. IBLens checks the logical consistency of your work.

Frequently asked questions

Does this work for both Math AA and Math AI?

Yes — the IB Math IA rubric is identical for both Mathematics: Analysis and Approaches and Mathematics: Applications and Interpretation. See also our dedicated Math AA IA grader and Math AI IA grader pages.

What is the word limit for the Math IA?

The IB recommends 6–12 pages, with no strict word limit. Typically 1,500–3,000 words plus mathematical working.

Is the Math IA grader free?

Every essay gets a free preview (band range, weakest criterion, top risks). The full report is $4.99.