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

The student presents a clear investigation topic and keeps the reader oriented with headings, figures, and a recognizable overall structure.

Most of the content stays relevant to the pharmacokinetic context, and the discussion generally follows a logical sequence from data to model to conclusion.

There is repetition in several places, and some explanations add length without adding new insight.

The modelling path becomes less coherent in the later sections, especially where a new starting point is introduced without enough justification.

Some parts of the conclusion do not fully match the earlier analysis, which weakens the flow of the exploration.

The student uses appropriate mathematical terms such as concentration, exponential decay, natural logarithm, and geometric series.

The student includes several useful representations, including tables, graphs, and transformed data, which help show the modelling process.

The student's writing is often clear enough that the reader can see the intended steps in the calculation path.

The notation is not always consistent, especially when variables, units, and transformed quantities are mixed together.

Some graphs and labels are not always presented with enough precision to make the mathematics fully unambiguous.

A few statements use mathematical ideas imprecisely, such as blurring correlation, regression, and model interpretation.