A study of instructional change in three schools reveals that a change strategy should take advantage of existing communication networks. Where there is little interdependence among teachers, administrators need to encourage its growth and replace the egg crate form of organization with arrangements that increase teacher interaction. (MLF)

Cuban says schools reflect our society's fascination with fads, which increases their vulnerability to pressures from different constituencies. The most long-lasting innovations have avid supporters and equitable intent. Kindergarten and preschool education are prime examples. Policymakers' efforts to change classroom teaching practice usually…