Summer revision course: useful, a scam, or a waste of time?
Jun 30, 2026
Your parents received the email. "Intensive revision course". 5 days. €890. Or €1490 with accommodation.
They are on board. You're not so sure.
The real question: do these courses actually work? Or is it just monetized parental anxiety?
Here is the honest, no-bullshit analysis, and an alternative that costs 100x less.
What a revision course really offers
The pitch: - 5 to 10 days of intensive classes - Small groups of 8-15 students - Specialized teachers - Methodology + practice on typical exam questions - Studious environment "away from distractions"
The price: - €600 to €1500 for 5 days (Paris) - €1500 to €3500 with accommodation ("studious" holidays in Biarritz or Provence) - Some private preparatory schools: up to €5000 for 2 weeks
It's expensive. Very expensive.
When a revision course is actually useful
1. You are really struggling in a subject
If you have a 6/20 average in math and you need a refresher with a teacher in front of you, yes, a course can unlock things that no app can explain to you as well.
A human who spots the way you make mistakes > all the resources in the world.
2. You have a highly-codified exam in 2-3 months
Competitive exams (Sciences Po, prep school), oral exams, heavy midterms. Specialized prep organizations know exactly what the jury expects.
If you are 6 weeks away from a major competitive exam, a good course can teach you the unwritten rules you would never learn otherwise.
3. You are totally lost when it comes to methodology
If you don't know how to write an essay, a text commentary, or a case study. A methodology-focused course can get you unstuck in 5 days.
When a course is a waste of money
1. You just need to "revise"
If the goal is to review material you've already covered, a course is a massacre for your wallet. You can do the exact same thing at home for €0.
2. You are struggling because of a motivation problem, not a level problem
The course will force you to work for 5 days. But when you get home, the problem comes back. Your motivation returns... to zero.
You don't have a course problem. You have a habit problem.
3. Your parents want to sign you up just to reassure themselves
Let's be honest: 70% of revision courses are sold to worried parents, not to students who actually need them.
If the student isn't the one asking for it, the result is zero.
4. You are going to do it "because everyone else is doing it"
Are your friends in BCPST prep doing it? They might be wrong. Not a reason to burn €1500.
The real problem with revision courses
They only last 5 days.
5 days of intensive classes is great for understanding. But it doesn't store anything in long-term memory.
Cognitive science research is very clear: - A lesson learned intensively and not reviewed is 80% forgotten within 2 weeks - To retain information, you must space out your reviews (D+1, D+3, D+7, D+14, D+30)
So the course itself only does half the job. You pay €1500 to understand, and you still have to retain it all by yourself afterward.
If you go back home and resume your slacking routine, your course will be useless in 1 month.
The €1500 cheaper alternative: the autonomous method
For 90% of students, here is the combination that replaces a €1500 course:
1. 1 hour of revision per day for 6 weeks (free)
More effective than a 5-day course for memorization. See our guide to revising during the holidays.
2. A tool for generating study sheets and flashcards (€5-15/month)
You upload your course, and you get study sheets + flashcards + quizzes. That's what Koro AI does in 30 seconds.
3. 1 or 2 hours of targeted private tutoring (if truly necessary)
If you have a real, specific difficulty, 1 private tutor in the subject you are struggling with costs €30-50/h. More effective than a massive course.
Total: €30 to €100 for an effect equivalent to a €1500 course.
How to know if you really need a course
Answer honestly: - Do you have less than 8/20 in a key subject? → course possibly useful - Do you have a major exam / competitive exam in less than 2 months? → course can accelerate - Do you not know where to start revising? → course can get you started - Regarding methods (essays, commentary) you don't know how to do them? → course justified - Are you between 12 and 16 but want to "go even higher"? → course = waste, do it on your own
The marketing trap to watch out for
Course providers use 3 sales levers: - Fear: "your child risks repeating the year/failing the exam" - Urgency: "limited spaces, registration closes in 48h" - Status: "course with teachers from prep schools X, Y, Z"
These levers work on parental anxiety, not on pedagogy.
If you see these signals, ask for concrete results: how many former students actually progressed, on which exams, with what proof. Without a clear answer, it's just business.
Our verdict
Course useful in 3 cases: 1. Real difficulty + need for a human 2. Major exam / competitive exam in 2-3 months 3. Specific methodology to learn
Course useless in 7 cases: 1. Good level just looking to "strengthen" 2. Motivation problem, not a level problem 3. Anxious parents, student not asking for it 4. Social pressure 5. Student who revises better alone at home 6. No post-course utilization plan 7. Tight budget (there are 1000 cheaper alternatives)
And concretely, what do we do instead?
You enjoy your summer. You do 1 hour a day, 5 days a week, for 6 weeks.
You use a tool that generates study sheets + flashcards + quizzes from your course. You test yourself regularly (active recall). You space out your reviews.
Result: your summer is saved, your budget is saved, and your return to school is just as prepared as with a course.
Conclusion
Summer revision course: useful if there is real difficulty + upcoming exam + methodology to learn. Useless (and expensive) in the majority of cases. For €1500 you can do the same thing yourself with 1h/day + a generation tool + 1-2h of targeted private tutoring. Before signing your child up (or signing yourself up), ask yourself the real question: is it a pedagogical need or a need for reassurance?