Exam-style question
Try this first
What is the safest exam approach for construct simple differential equations in pure mathematics…?.
- A.G6: justify each step using the relevant differentiation rule
- B.Use any familiar GCSE calculation even if it ignores Construct simple differential equations in pure mathematics…
- C.Write only the final answer without showing the mathematical method
- D.Change the notation or restrictions to make the algebra look simpler
Model answer
What a good answer should say
- The correct answer is G6: justify each step using the relevant differentiation rule.
- This option is best because identify the mathematical structure, choose a valid method, and justify the final statement, then checks that the notation, restrictions and conclusion match the AQA A-level Mathematics objective.
This answer is tied to the objective: G6 Construct simple differential equations in pure mathematics and in context, including contexts such as kinematics, population growth and modelling the relationship between price and demand..
Explanation
Why this works
Use the explanation to connect the worked answer back to G6 Construct simple differential equations in pure mathematics and in context, including contexts such as kinematics, population growth and modelling the relationship between price and demand..
G6: justify each step using the relevant differentiation rule is the correct option. It directly supports construct simple differential equations in pure mathematics… by requiring the student to identify the mathematical structure, choose a valid method, and justify the final statement.
The other options are weaker because they hide the reasoning, ignore restrictions, or use a generic calculation that may not fit the objective.
Maths method check
- Topic focus: Pure Mathematics.
- Question style: practice.
- Reasoning demand: understanding.
- Check the operation, notation, units, and final answer form against the question before moving on.
Common mistake
No common mistake is linked to this question yet.