Official Ubuntu project is providing free training manuals in PDF format. There are 10 lessons in total with the last lesson covering Partitioning and Booting optional. The course is modular – 2 days if all lessons are covered however, topics and lessons can be selected as required.

There are 2 versions of the course:
=> An Instructor Guide which has instructor notes and answers to the exercise questions together. Download link [72M]

=> A student guide which does not have instructor notes; answers to the exercises are provided separately. Download link [73M]

More information available at Ubuntu Training Wiki.