Regarding your issue on the 5 months BMT which your PE teacher
claimed, it is untrue.
For those enlistees who did not attain a silver and above for their
NAFA test, you have to go through a extra phase in BMT, called the
PTP phase. The PTP phase will last for 2 weeks, which means you
have to enter BMT 2 weeks ealier than your peers who have attained
a silver and above. Both PTP batch and the normal BMT batch will
finish on the same date. So, even you have failed your NAFA test,
you can keep taking the test by booking an appointment with th
physical training instructors from SAF. U can do so by logging on
to www.ns.sg.
For poly students, you can book a NAFA test with the SAF website(
as men tioned above). If you attain a silver and above, you still
will be exempted from the PTP phase.
Does this answer your qns? 
