The New York State Department of Education (NYSED) has been supporting selected districts in the planning and implementation of PreK-3rd Grade systems. NYSED is supporting the use of the Framework for Planning, Implementing, and Evaluating PreK-3rd Grade Approaches developed by Kauerz and Coffman (2013). Recognizing the ultimate goal of PreK-3rd grade systems is to improve child outcomes and close achievement gaps, the districts have selected a range of priorities. The priorities and approaches reflect the unique district context, initiatives, priorities, and stakeholder perspectives. Each district has made progress in the implementation of their PreK-3rd grade plans. Analysis of information collected from the PreK-3rd grade teams reveals cross-cutting lessons learned. PreK-3rd grade teams engaged in planning and implementing a PreK-3rd grade framework could review these lessons learned and associated questions to guide their planning and implementation. Among the lessons learned are: (1) Select team members carefully; (2) Build on existing strengths, priorities and efforts; (3) Recognize where the district is on the path of PreK-3rd grade planning and implementation; (4) Focus on early success in a few areas and then build on that success; (5) Engage champions in the effort; (6) Phase in activities and learn from early implementation; and (7) Develop a communication strategy.