Dr. Joanna C. Weaver is an Associate Professor at Bowling Green State University. Her research framework is interdisciplinary reflective practice using lesson study as the vehicle for reflection. She serves pre-service teachers, in-service teachers, and the educational community. Implementing training, workshops, and professional development (PD) for pre-service and in-service teachers across disciplines and grade bands, Dr. Weaver promotes collaboration and reflection to strengthen instructional practice, content knowledge, and student learning. Dr. Weaver has developed jigsaw lesson study in her teacher education courses, and in research, she has partnered with colleagues in lesson study both internationally and nationally. She has published numerous chapters and articles focused on the positive impact of lesson study on professional knowledge, feedback, instruction, and reflective practice.