What should a Grade 5 diagnostic assessment measure?
A few key skills through varied questions: number understanding, operations, fractions and decimals, measurement and problems. Analyse thinking and error types, not just the final score.
Practical takeaways
- Keep the test short so it does not measure fatigue.
- Ask the child to write or explain their steps.
- Analyse errors by skill and cause.
- Turn the result into a targeted two-week support plan.
Before the test: create fair conditions
Choose a time when the child is rested. Explain that the test identifies what needs clearer explanation, not judges them. Do not give hints during answers; note questions where they pause or hesitate.
Areas to cover
One or two good questions per area are enough. Use unfamiliar numbers to avoid reliance on memory, and include a word problem to test operation choice.
- Read and partition a number; compare two values.
- A written calculation with an estimated result.
- Compare two fractions or link a fraction to a simple decimal.
- Convert a unit or calculate perimeter and area.
- A two-step problem with an explanation of the answer.
Error-analysis grid
For each question, note understanding, method choice, calculation and checking. A wrong answer may follow sound understanding with a minor arithmetic slip; a correct answer may be accidental. Right or wrong alone is insufficient.
- Understanding the language and data.
- Recalling the appropriate concept.
- Organising steps and executing accurately.
- Using the unit and checking reasonableness.
From results to a support plan
Start with two skills: a foundation to rebuild and another to consolidate. Set an observable result, such as partitioning a decimal or choosing the right operation in four of five problems. Reassess with a new question after two weeks.
Frequently asked questions
Should we give the child a mark?
Prefer describing secure skills and support needs. A mark may help internal tracking, but should not dominate the conversation with the child.
Should we repeat the same test after practice?
Use new questions assessing the same skills; memorising answers does not prove transfer of understanding.
What if most answers are wrong?
Start with an earlier foundational skill rather than fixing everything at once. Persistent difficulty may need structured support.