The first is to show respect, and the instructors also helped during the competition.
Secondly, according to the requirements of the competition, you need to fill in the instructor.
teacher
Generally speaking, it refers to your counselor, who mainly conveys the spirit and instructions of the school about your life. He pays more attention to students' lives, and can only supervise in his studies, not teach you directly.
Of course, if you have research, such as doing projects or patents, in this case, there will definitely be a teacher or several teachers to guide or help you with in-depth research, and such teachers will also become your instructors. When the paper is published, it will indicate who is the instructor.