Examination preparation means practising the thinking and writing that investigation questions need. Practical-centre provision means the equipment, supervision, entry and any assessed practical arrangements your school or exam centre manages. They are different jobs, and keeping them separate removes a lot of confusion.
This lesson closes investigations and evidence. Check the current wording on the Cambridge Combined Science 0653 page for your exam year.
What can be practised on paper?
Skills that appear in written investigation questions can be rehearsed anywhere: naming controlled conditions, suggesting a safe measurement improvement, explaining systematic error, and weighing alternative conclusions.
Worked example
Sort these five statements into “exam preparation” (EP) or “centre provision” (CP).
- Writing a conclusion from a table of invented results.
- Providing laboratory equipment and supervision.
- Calculating a mean and percentage uncertainty.
- Registering the candidate and confirming entries.
- Deciding whether a result is precise or accurate.
Step 1, ask who does the action. If the student can do it with a pencil and a data table, it is EP. If it needs a school, a supervisor or an official process, it is CP.
Step 2, apply. Statements 1, 3 and 5 are EP. Statements 2 and 4 are CP.
Step 3, act. Practise 1, 3 and 5 with a teacher. Ask your centre about 2 and 4.
The mistake to watch for
Mistaken answer: “My tuition teacher will arrange my practical work and my exam entry.”
That mixes the two roles. Exam entry, practical arrangements and access requests go through the exam centre. The correction is to list what you need from the centre and ask them directly.
Check yourself
1. Which is exam preparation: drawing a results table, or booking laboratory time?
Show answer
Drawing a results table. Booking laboratory time is a centre matter.
2. Name one question to ask your centre about practical skills.
Show answer
For example: “Which components and practical-skills assessment will I sit this exam year?”
3. True or false: online tuition can issue an access arrangement.
Show answer
False. The exam centre applies to Cambridge for access arrangements.
Where this leads next
Put the whole module together in the investigations practice set, and use the mistake log to keep track of repeat errors.
If your preparation questions are clear but the writing is not, online one-to-one Combined Science tuition can focus on that.