P5.1-Planning variables, method and apparatus

Identify independent, dependent and controlled variables; describe how variables are varied, measured and kept constant; and present a workable labelled apparatus arrangement and procedure.

Use planning variables, method and apparatus to connect the rule to the data and decision in the question.

This matters because planning variables, method and apparatus determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply planning variables, method and apparatus to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: Planning variables, method and apparatus is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.