There are no real shortcuts to learning mathematics, either. If you want to learn mathematics, or help your children learn mathematics, you are going to have to put some time in yourself. The best thing to do is to get a book. Once you have used a book, it will be easier to refer back to. Books are more portable in general.
Books are easier to learn from.
If you want interactive mathematics help, then try a newsgroup. There are plenty of very good mathematical tools around. Just go away. This person, and any others such, occupy their time posting articles with lurid, irrelevant and even illegal schemes for gaining money. These schemes are mathematically unsound, and help to waste bandwidth and server disk-space.