Click here to sign up for a FREE 6-hour on-line Chinese course: Chinese for Beginners (offered by Beijing University).
It’s a self-paced online course with 6 hours of videos and quizzes. You can listen to them at your own pace.
This is just for your information. The course is offered through Coursera–“Coursera provides universal access to the world’s best education, partnering with top universities and organizations to offer courses for anyone to take, for free.” You can sign up for any subjects and topics that interest you for free.