My sister graduated from poly last year with a GPA of 3.8. She
got into mass com course in NTU but pulled out later because she
wanted to go to SIM where the same degree will take 18 months
instead of 3 years. She told me that GPA above 3.5 will have a good
chance to get into local uni. Anything below that is very
tough.
For medicine at NUS, you will have a harder time than JC students.
All applicants who are shortlisted need to go through 2 interview
sessions (each about 30 mins) and write an essay. The essay is like
a test because you do not know what they are going to ask you, and
they can ask you anything ranging from ethics to opinions to
character to personal life experience. As for the interviews, its
like a grilling session with 3 interviewers for each interview.
They will make you feel you are so not going to make it into
medicine because they slap you with tonnes of questions including
medical ones.
For law at NUS, they require 1 interview as far as I remember my
friend told me. They like to ask on current affairs and your
opinions on ethics and stuff like that. Best to be well read for
it. I'm not sure about law at the other unis cos none of my friends
are in it.
For dentistry at NUS, they require 1 interview and 1 manual
dexterity test. The interview is another grilling session like
medicine's, with 3 interviewers. The manual dexterity test will
test how agile you are with your hands. Whether you are technical
enough. Its not a very reliable gauge but yeah.
Apart from these, you have to show a keen interest and must have a
much more wonderful portfolio compared to a JC student's. I picked
these 3 courses to talk about in particular because they are the
hardest for poly students to get in. I know this year 2 out of 259
med students are from poly. Thats a good start. None got into
dentistry. And im not sure about law.
Just read up and get prepared. Practise your speech because if your
GPA is not good enough, you are likely to be called in for
interview even if the course doesnt usually require one. Good
luck.