Final answer:
The question refers to the obligation of educators to prevent the unauthorized practice of teaching, emphasizing the professional and ethical standards in education.
Step-by-step explanation:
The question concerns professional ethics within the field of education, specifically about the professional duties of educators with regard to preventing the unauthorized practice of teaching. In this context, the blank would be teaching, as the question indicates a situation where an educator should not enable a person who is not a certified educator to perform teaching duties which would require proper authorization and credentials.
This principle is rooted in maintaining the integrity of the profession and ensuring that students receive education from qualified individuals. It reflects the broader commitment of educators to provide an environment where students can "become themselves", as advocated by Paulo Freire in his influential book Pedagogy of the Oppressed.