IB Mathematics Applications & Interpretation (AI) HL Internal Assessment Example

The student presents a clear structure with a contents page, labelled sections, and a logical progression from context to evaluation.

The student's exploration stays mostly focused on the modelling aim and is generally easy to follow.

The overall layout is neat and professional, which supports readability.

Some tables and extended explanations are longer than they need to be and reduce conciseness.

A few conclusions and labels are inconsistent, which interrupts the flow of the argument.

There is some repetition where shorter, more targeted comparisons would have been clearer.

The student uses appropriate mathematical notation and terminology for much of the investigation, including functions, parameters, derivatives, integrals, and regression output.

The student includes multiple useful representations such as tables, graphs, fitted curves, and technology output.

The student's communication is usually readable and visually consistent.

Some notation is inconsistent, especially when parameter symbols or model labels change across the exploration.

A few explanations use imprecise mathematical language or incorrect interpretations of derivatives and model behaviour.

The representations would be stronger if they were supported by residual analysis or more targeted comparison measures.