Other then graduated de students, anyone thinking of having
tuition during the holidays mah?
Oh yes I certainly encourage my (tuition) students to have tuition
during the holidays! 
But ok, (half) kidding aside, whether it's a good idea or not,
is mostly dependent on whether you (ie. the student) wants to or
not.
If you (the student) are honestly not interested in
preparing for next year (eg. Sec 3 /4 / JC1 going onto Sec 4 /
JC1 / JC2), then holiday tuition is a waste of time, that won't
benefit you.
If you (the student) are genuinely interested in preparing
for next year (eg. Sec 3 / 4 / JC1 going onto Sec 4 / JC1 /
JC2), then holiday tuition is a sensible use of time, that will
benefit you.
Personally though, I think it's far more urgent for JC1-to-JC2
students to do Nov/Dec holiday tuition, rather than Sec2-to-Sec3 or
Sec3-to-Sec4 students. The 2 yrs JC1+JC2 syllabus covers much more
than twice as much (and much more than twice the difficulty
level) as the 2 yrs Sec3+Sec4 syllabus, and time is really
valuable. Nov/Dec hols should be used to prepare for JC2.
Especially for Chemistry. Best to use Nov/Dec hols to prepare
the students for Organic Chemistry (which most JCs teach in year
2), which is remarkably different from Physical Chemistry and
Inorganic Chemistry, and therefore Nov/Dec is the best time to
prepare (eg. Tuition) for Organic Chemistry.
Enjoy your Holidays! 
