We now have significant research on what high-performing schools do to generate and sustain improvement.1 Many districts have codified this research into standards for and assessments of school practice that serve as the basis for school improvement.
These lists tend to look similar across districts and include such essential elements as rigorous and engaging curriculum and
data-informed instruction and
assessments that align with state standards;
transformational leaders who build effective teaching teams;
effective teachers in every classroom;
expertise and strategies to respond to individual needs of all students (e.g.,

gifted, ELL, special education, and struggling learners);
a safe, welcoming learning environment;

resources and organization that match student and school needs; and
parent and community partnerships. 

p 19 Educational Resource Strategies - Edweek
http://reg.accelacomm.com/servlet/Frs.FrsGetContent?id=51128996 

gifted, ELL, special education, and struggling learners);
a safe, welcoming learning environment;

resources and organization that match student and school needs; and
parent and community partnerships. 

p 19 Educational Resource Strategies - Edweek
http://reg.accelacomm.com/servlet/Frs.FrsGetContent?id=51128996