Hello Victoria!

If I'm understanding your question correctly, your son has been using Khan Academy on your account and you want to be able to make his own account but still be able to track his progress?

This can be done by going to your settings and ensuring that your account is a parent account.  Once you have done this, go to your parent dashboard by clicking your name in the top right corner and selecting 'Parent Dashboard'.  You should then have option to add a child.  Complete all the steps prompted, and your son should have his own child account.

If you encounter any problems, or this didn't answer your question, let me know and I'd be glad to help you further :)

He has his own account. Can I move the data from his already completed work to his child account from my parent account? Thanks!

Unfortunately there is no way to transfer data between accounts.

Thank you.