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Evaluating investigations
Evaluate an investigation's method by identifying random and systematic errors and suggesting specific, practical improvements.
⏱ 19 min❓ 8 questions
What you'll be able to do
- ✔I can distinguish random errors, systematic errors and mistakes, and explain how each affects results
- ✔I can identify weaknesses in a described method that affect validity and reliability
- ✔I can suggest specific, practical improvements rather than vague ones
How this works
- 1Read the short explanations first — they teach you what you need before each question.
- 2Answer each question, then tap Check. A right answer moves you on automatically; if it's wrong, you'll see a friendly explanation of why.
- 3Finish all 3 steps to see your score — sign in and subscribe to unlock the full lesson and save it.
What's inside
8 questions and 1 quick teaching card, including:
- 🔗Match the pairs — Choose the partner that goes with each item.
- 🔢Number answer — Work out the answer and type the number.
👪Grown-up tip: sit alongside younger learners for the first few lessons. Read the questions together and chat about the explanations — that's where the real learning sticks.
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Curriculum: AC9S9I05