The teacher is the professional responsible for facilitating learning in the classroom. Their primary role is to convey knowledge, guide students, and create an environment conducive to learning.

Students are the recipients of the educational process. They attend classes to acquire knowledge, develop skills, and cultivate attitudes under the direction of the teacher.

The message is the information intended to be communicated. In a didactic context, it may include concepts, theories, instructions, and any content the teacher seeks to convey to the students.

The code is the system of signs used to transmit the message. It can be verbal (spoken or written words) or non-verbal (gestures, images, symbols) and must be understood by both the teacher and the students.

The channel is the medium through which the message is transmitted. It can be oral (in-person classes), written (books, printed materials), or digital (online platforms, videos) and is essential for effective communication.

The context refers to the environment in which communication occurs. It includes factors such as the physical setting, culture, social circumstances, and the emotional state of the participants, which can influence the interpretation of the message.

Feedback is the response that students give to the teacher regarding the received message. It can be verbal or non-verbal and is crucial for adjusting and improving the teaching-learning process.

Noise refers to any interference that can distort or hinder communication. It can be physical (environmental sounds), psychological (prejudices, distractions), or semantic (misunderstandings in interpreting the code).