3.3.6.1c - Speed of change

Analyse time and speed of change.

Use c - speed of change to connect the rule to the data and decision in the question.

This matters because c - speed of change determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply c - speed of change to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: c - Speed of change is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.