The good news: The Bill & Melinda Gates Foundation has announced that it's giving over $300 million to the cause of training good teachers and figuring out what makes a good teacher. The bad news: None of the money is coming to San Francisco. $290 million is being spread around to four testing ground school districts in Tampa, Pittsburgh, Memphis, and L.A., where it will be used for teacher training and new programs and incentives to encourage the best teachers and remove ineffective ones. Another $45 million will go toward research. The foundation purposely chose four diverse school districts in, well, three corners of the country, each with their own problems and successes. Vicki Phillips, who directs the foundation's K-12 education program, hopes the outcome of the grants will "rock" every school district in the nation.