C.3.7—Instantaneous and average rates

Distinguish between instantaneous and average rates of change and interpret them physically.

Use c.3.7—instantaneous and average rates to connect the rule to the data and decision in the question.

This matters because c.3.7—instantaneous and average rates determines what can be inferred or chosen; begin with the stated conditions and keep the conclusion tied to the evidence.

Example: apply c.3.7—instantaneous and average rates to one small, clearly defined case, show the key step or comparison, and explain the result in words.

Boundary: C.3.7—Instantaneous and average rates is not a universal recommendation. Check the syllabus scope, assumptions, units and the limits of the evidence before generalising.