During the exam, the supervisor will assist with the invigilation of the exam ensuring candidates do not communicate with each other. Just before the exam is about to start, the supervisor should explain to the candidates that they can request chemicals or materials (should they run out) or more of the same apparatus because of spillages or breakages. Unless the confidential instructions say otherwise the supervisor must reset equipment back to its original state where candidates need to change between one apparatus and another.
The supervisor must also perform the experiments using the same equipment, materials, and batch of chemicals as the candidates. This must be done out of site of the candidates and the results recorded on the supervisor’s report. The supervisor is also responsible for filling in the supervisor’s report.
At the end of the exam (along with the invigilator) the supervisor must check that any forms that we ask for in the confidential instructions are included with the candidate scripts to be returned to Cambridge International for marking and grading. If any problems occurred during the practical such as faulty equipment that disadvantaged the candidates, the supervisor should record this in the supervisor’s report and talk to exams officer about applying for special consideration.
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