This document discusses teacher competencies, which are defined as the set of knowledge, skills, and experience necessary to be an effective teacher. It identifies three main types of teacher competencies: subject competencies which refer to strong knowledge of content areas; pedagogical competencies which involve teaching skills and understanding how students learn; and technological competencies which include the ability to use technology appropriately in the classroom. The document provides details on each type of competency and their importance for quality teaching. It emphasizes that competent teachers have both in-depth content knowledge as well as skills for effectively imparting that knowledge to students.