We were driving up the coastal area of hilly San Mateo County, just north of Silicon Valley, when we saw something ahead on the shoulder of the road. When we got a little closer, we saw it was a middle-aged man wearing a tweed jacket with elbow patches. He was holding up a sign: "WILL TEACH SCHOOL FOR HOUSING."
While this story is fictitious, the need for affordable housing for teachers in the Bay Area is very real. Several school boards, including those in San Francisco, San Jose and M...