Edthena is a video-based platform designed to enhance teacher professional development through collaboration and feedback. It allows educators to upload classroom recordings for self-reflection, peer review, or feedback from instructional coaches. With features like time-stamped comments, coaching cycles, and customizable frameworks, Edthena supports continuous improvement by enabling detailed analysis of teaching practices. The platform also includes tools for tracking progress and fostering collaborative learning communities, making it a comprehensive resource for professional growth in education.