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Year 11 · 2017 syllabus · Module 1 pilot

Planning a safe, valid method — Apply worksheet

Original practice. Write explanations that distinguish observations, evidence and claims.

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Name: __________________________ Date: ______________

Question 1

A group changes its timing endpoint midway. What should it record and do?

Question 2

A spinner hits a desk. State an appropriate handling rule.

Question 3

Explain why “buy a better sensor” is incomplete as an improvement.

Teacher answer key — 3 questions

Model responses identify the essential ideas. Accept scientifically correct alternatives that address the question; wording need not match exactly.

  1. Document the change and do not pool incompatible readings without justification. Recollect comparable data or analyse the methods separately.
  2. Record the collision and identify the trial as invalid under a predefined collision rule; repeat it safely. Preserve the raw observation.
  3. The report must identify the limitation and specify suitable response, resolution, calibration and method; price alone does not establish fitness for the task.