EXECUTIVE OPPORTUNITY   An Invitation to Apply or Refer a Candidate for the Position of Superintendent of Schools Region 12 Schools, Connecticut   The Region 12 Board of Education seeks dynamic and effective leaders as candidates for its Superintendent of Schools position.   About Region 12 Schools The Region 12 School District educates approximately 800 students in four schools: Booth Free School (K-5); Burnham School (K-5); Washington Primary School (PK-5); and Shepaug Valley School (6-12), which combines comprehensive