This quantitative study examined the impact of professional learning communities (PLCs) implementing a "Focus on Learning" in a Title I school in north central Georgia. The purpose of this study was to determine the impact PLCs can have on student growth and achievement in fourth and fifth-grade mathematics, once teachers spend time…

Although lesson study has been shown to improve the teaching and learning of mathematics, little research has focused on reasons for engaging in it from a teacher's perspective, particularly after sustained engagement with lesson study. This qualitative study reports on thirty-three teachers from the United States who were involved in twelve…