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

The student's report has a clear overall progression from context, to modelling, to testing, to conclusions.

The sectioning is well developed, with a title page, contents page, tables, appendices, and a bibliography that make the work easy to navigate.

Most of the material stays relevant to the investigation and supports the central line of argument.

Some sections become too long or repetitive, especially where similar calculations are repeated across the volcanoes.

A few contextual passages drift away from the mathematical focus and reduce conciseness.

Some conclusions are stronger than the evidence supports, which weakens the logical flow at key points.

The student uses appropriate statistical language such as Poisson distribution, expected frequency, chi-squared test, and p-value.

The student's tables, equations, and graphs help communicate the modelling process and show how the results were obtained.

The report is generally readable and the main symbols are introduced in a way that supports understanding.

There are several notation inconsistencies, including shifts between variables and some imprecise formula writing.

Some calculations are presented through spreadsheet output without enough mathematical unpacking for the reader to check them fully.

The language is not always mathematically precise, especially when interpreting statistical results.