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TL;DR Practical crash courses compress essential lab techniques into 2–5 intensive sessions, typically run in June or September. Mock practicals simulate the actual exam — timed, invigilated, with marking and feedback. Most students attend baseline practicals first, then crash courses for revision, then mocks for exam readiness. Crash courses are useful for both school candidates (to supplement school labs) and private candidates (to build skills quickly).
What is a practical crash course?
A practical crash course is a short, intensive programme — typically 2 to 5 sessions — designed to cover the essential lab techniques and exam skills for a specific science subject in a compressed timeframe.
Unlike regular practical programmes that spread sessions across months, crash courses focus on:
Crash courses are not a substitute for sustained practical training. They work best as a revision and consolidation tool for students who already have some lab experience.
What is a practical mock exam?
A mock practical simulates the actual Paper 3 (O-Level) or Paper 4 (A-Level) exam as closely as possible:
The key difference: after a mock, you get detailed feedback on your script. The tutor identifies where you lost marks and what to fix before the actual exam. In the real exam, you get a grade but no feedback.
When to attend
Recommended timeline
Period
Programme type
Purpose
January–April
Baseline practical sessions (4–6 sessions per subject)
Build foundational lab skills, satisfy SEAB certification for private candidates
May–June
Crash course (2–3 sessions)
Revise key techniques, fill gaps, practise exam-style tasks
August–September
Crash course (2–3 sessions)
Final technique revision before exam window
September–October
Mock practical (1–2 sessions)
Full timed simulation with marking and feedback
When crash courses are most useful
After baseline training: You have handled the apparatus before but need focused revision
Before the exam window: September crash courses target the October/November exam
For specific weak areas: Some crash courses focus on one technique family (e.g., titration-only crash course for Chemistry)
When a mock is essential
4–6 weeks before the exam: Early enough to fix issues, late enough that skills are fresh
If you have never done a timed practical: The time pressure in a real exam is significantly different from untimed lab sessions
If you are a private candidate: Mock practicals reveal whether your training has been sufficient
What crash courses cover by subject
O-Level Pure Physics (6091) — Paper 3
A typical Physics crash course covers:
Mechanics: trolley experiments, spring extension, pendulum timing
How many sessions, and how long is each? A 2-session crash course of 2.5 hours each gives you 5 hours of lab time. That is enough for revision but not for learning from scratch.
Does the programme match your exam format? Combined Science Paper 5 is different from Pure Science Paper 3. H2 Physics now requires spreadsheet skills. Make sure the programme covers what you actually need.
Is the mock exam timed and invigilated? A mock that allows unlimited time or tutor help during the session is practice, not a mock. The value of a mock is experiencing exam-condition pressure.
Do you get your script back with feedback? Marking and feedback are the most valuable part of a mock. Without feedback, you are just doing another practice session.
What is the student-to-supervisor ratio? Practical training requires supervision. Sessions with more than 5–6 students per supervisor reduce the amount of individual feedback you receive.
For private candidates
Crash courses and mock practicals are particularly important for private candidates because:
You may not have access to regular lab sessions throughout the year
The SEAB practical declaration requires you to have completed training before the exam
A mock practical is the best way to assess whether your training has been sufficient
For certification requirements and training timelines:
Can I attend a crash course without having done baseline practicals? You can, but you will get less out of it. Crash courses are designed for revision and consolidation, not first-time learning. If you have never handled the apparatus before, start with baseline practical sessions.
How many mock exams should I do? One well-marked mock with feedback is worth more than three unmarked practice sessions. Most students benefit from 1–2 mock practicals per subject, spaced 4–6 weeks and 1–2 weeks before the exam.
Are crash courses available for Combined Science? Yes. Combined Science candidates sit Paper 5, which is shorter than Paper 3 but tests similar practical skills. Check whether the crash course you are considering covers Paper 5 format specifically.
Can school candidates attend crash courses? Yes. Many school candidates attend crash courses to supplement their school lab sessions, especially if their school's practical programme is limited.
