There's alot of home-schooling resources at Woodlands Regional Library & Bras Basah's Popular (there's more activity/teacher resources here).
I did alot of research on home-schooling as I was interested to home-school my boy but realised he needs social interaction that he gets from school. So we've decided to let him attend school for now & re-look the home schooling option.
What's your purpose of homeschooling? Many parents have different aims/objectives so materials/resources will differ. Mine is more Christian education & academic based, so materials are more skewed towards Christian values.