P1.1.2 - Use and manipulate surds

Use and manipulation of surds.; Students should be able to rationalise denominators.

Use use and manipulate surds to connect the rule to the data and decision in the question.

This matters because use and manipulate surds determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply use and manipulate surds to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: Use and manipulate surds is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.