Is there any center in Sydney in Australia?

Hi samiei.sara2020,

I'm afraid Khan Academy does not have any physical learning locations at the moment.

If you're struggling with getting started, I suggest you check out some of our resources for new learners: https://support.khanacademy.org/hc/en-us/categories/200175790-For-Learners

If you have any additional questions about using the site, you're always welcome to post them here in our Support Community!