Khan Academy provides a "course" for teachers to get started using Khan Academy.
It contains 7 lessons including:
The course is a combinations of videos, articles, and practice. Some of the individual videos are linked on this page.
Beyond the Basics
The videos below are 30 minute webinars created during the spring by teachers and Khan Academy targeted for specific areas of teaching. The grade block videos have more of a math focus, and there are videos for other subject areas below too.