Texas Lesson Study is inquiry-based, job-embedded professional development that allows teachers to work collaboratively to develop, teach, and assess research-based lessons. In Professional Learning Communities, teachers collaborate to identify a concept that students have difficulty understanding. Teachers then examine educational research to determine best practices and spend weeks skillfully designing an exemplar lesson. After the lesson is taught to students, teacher teams reflect, refine, reteach and plan for intervention and enrichment, to ensure mastery by every student.

The purpose of Lesson Study is to help teachers improve their effectiveness, share best practices with other teachers, improve student outcomes, and provide a platform to demonstrate mastery within the teaching profession.