The School Reform Initiative, SRI, is an excellent source of guidance for building your system’s capacity to talk about and use data to improve schools and student achievement. The protocols (which set forth a guided process for exploration and discussion) can help your team or system: investigate teaching, learning, and assessment; examine data and data sets; focus on students; and much more. Many protocols are available in Spanish and Portuguese as well.
Find the protocols at http://www.schoolreforminitiative.org/protocols/.