I'm sorry, but after a lifetime in education and a keen inspector of all methods of sharing the knowledge, on-line teaching simply isn't effective at least not for kids. You may as well show them cartoons all day. Learning on line is next to useless for kids. Just because people do it and businesses profit from it doesn't mean it's any good. It's about as effective as a healthy person taking vitamin tablets. I've written about this at length before but in a nutshell....because of the impersonal nature of online contact teaching, there are many physiological and psychological issues that can't be overcome to provide an efficient learning environment. Sure companies are making money doing it, but for kids, it's not something a parent should embrace with any high expectations of academic progress.