Florence,
I'm agreed with MTDT for slow and steady pace at PCF. We need to be proactive in encouraging the kid at home. Usually, i will teach my boy at home also. If i am busy, I will play him educational TV shows or DVD's.
This year, i enrolled him to phonic class for english at Sengkang CC. It turns out very fun for him and he's catching up quite fast.
You could check at sengkang cc, they have quite a lot short courses to cater nursery, K1,K2 up to P4 need. And doesn't cost as much as private enrichment center.
This year my son is K1, i feel K1 is more focus in reading and writing. Nursery time, i felt he's a bit relax. Only number and alphabet recognition. Perhaps don't feel so worry first.
For chinese, ahhhh..my boy got ton of problems! hiii