At a glance Intensive professional learning for teachers and principals who support and monitor professional learning positively impacts teacher classroom practice and student achievement in mathematics in rural Missouri middle schools. The study Meyers, C., Molefe, A., Brandt, W.C., Zhou, B., & Dhillon, S. (2016). Impact results of the eMINTS professional development validation study. Educational Evaluation and Policy Analysis, 38(3), 455-476. WHAT THIS MEANS FOR PRACTITIONERS The design, implementation, and evaluation of eMINTS exemplifies the potential of standards-based professional learning to strengthen teacher practice and student results. Each of Learning Forward’s Standards for Professional Learning (2011) is evident in the design and implementation of the program: Learning Communities: Teachers learned and applied professional learning within learning communities in schools whose culture focused on continuous improvement