Communication skills and dialogue are key competencies of the 21st century and a condition for successful implementation and personal development in general. This requires their formation to be the subject of purposeful educational activity. At the same time, their implementation in the learning process is a complex and difficult task, requiring a change in learning models, teaching competencies, and the organization of learning. The present report examines the possibilities of forming skills for effective communication and dialogicity in high school students in the process of training in technical disciplines through teamwork on projects. [For the complete proceedings, see ED655360.]