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

The student's exploration has a clear overall structure and a logical progression from motivation to modelling and evaluation.

The student's topic stays relevant to the investigation and is easy to follow as a real-world problem.

The student keeps the discussion focused on the practical purpose of the mathematics rather than drifting away from the aim.

Some sections are longer than needed and reduce conciseness.

A few tables and equations are awkwardly formatted, which interrupts readability.

The conclusion relies too heavily on the fitted curve without enough support from model behaviour or residual evidence.

The student uses mathematical terms and regression notation in a mostly appropriate way.

The student includes several helpful representations, such as tables, graphs, and regression equations.

The student's writing is usually clear enough that the reader can follow the calculation process and compare models.

There are inconsistent symbols and a few notation errors that reduce precision.

Some labels and formulas are not written in a fully standard way.

The graphs and visual comparisons would be easier to interpret with clearer annotation.