This article describes a learning partnership between district or county leaders and school leaders to create a system of principal professional learning that came to life in principal learning communities across a district or multiple-district region. For more than a decade, Learning Forward has engaged with district-level leaders as learning…

The professional teaching and learning cycle (PTLC) is a professional development process in which teachers collaboratively plan and implement lessons aligned to their state standards. This process is an important part of the Working Systemically approach, designed by SEDL to improve a school system's capacity to increase student achievement.…