to all seondary school people here: PLEASE CONSIDER YOUR PATH AFTER SEC SCHOOL CAREFULLY!
in a nutshell, if you never intended to go to University, do not bother even contemplating going to JC.
you learn 3 times more material in A levels than your entire O level syllabus, having to study 3 times as hard, but only given half the amount of time to do it. majority of JC goers witness the horror of "i didn't know a single f*** thing the lecturer was saying" within the first 2 weeks of school.
What's more, an A level certificate is as useful to your career as that poster of Jay Chou hanging on your bedroom wall. Take a A level holder and a diploma holder and make them both go look for jobs, it is a statistical fact that diploma holders have more useable knowledge in the workforce and are more sought after. To add salt to the injury, a recruiter may choose an O level holder instead of an A level holder bcos they both have the same work exposure (which is nil, discounting part-time jobs) but have to pay the A level higher based on that cert.
That's not all.
A poly diploma holder also has the option of going to universities, and with a much higher drive than JC students. Ask university students in Singapore how their poly-entry counterparts do in universities and they will tell you they are "f***king siao on". That is no exaggeration. They also show a much keener sense of awareness in terms of EQ and social etiquette, and doubtlessly a much more mature attitude in their work.
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My friends who went to JC and did badly for A levels were given university courses they didn't want. Those who took it up suffered for 4 years or more, and a few quit university and went to poly instead! they should have just went to poly and saved themselves 3 years! many others took the "Australian Degree" route and had their well-to-do families pay for their exorbitant education overseas.