Washington public schools hire some foreign teachers by using H-1B visas
http://seattletimes.nwsource.com/html/localnews/2009393348_h1b28m.html
While use of the visa in the private sector at companies like Microsoft is well-known and hotly debated, less is known about school districts' use of the program. In fact, at least 40 Washington school districts have applied for H-1B visas to employ teachers and staff over the past five years.