Google also announced the news in their Official Google Blog. The first lesson will be released on July 10, 2012.
The course is of six classes, each have 50 minutes long. The lessons will be released on Tuesdays, Wednesdays and Thursdays starting on July 10, 2012 and ending on July 19. Registration is open from today until July 16, 2012, though Google recommends registering before the first class is released. Course-related activities will end on July 23, 2012.