In the LDS faith, the offices of the Aaronic Priesthood are Deacon, Teacher, Priest, and Bishop. Current practice in the LDS church is to ordain most teenage boys in the church to the first three offices as they progress through their teenage years.
Do LDS Aaronic Priesthood Teachers have actual teaching duties in a practical sense in the 21st century, or are they teachers in an abstract or theoretical sense (e.g. if all priesthood holders except for 15 year old Billy were killed or incapacitated, he would be allowed to take over classrooms, but until then, he is expected to be quiet and let the adult professionals do the actual teaching)? Do they design curricula, lecture, hold office hours, grade papers, administer exams, evaluate students, or otherwise engage in practices associated with professional educators nowadays? Do Aaronic Teachers have divine authority to teach a wide variety of courses, content, or curricula but in practice don't because there are usually more qualified, professional teachers available at whatever level is being discussed (e.g. college, high school, etc.), or are their actual teaching competencies sharply limited in both theory and practice (e.g. they are authorized only to teach Sunday School, and that only for Grade 5 and below, anything else requires a further ordination, and/or a non-priesthood teaching certification).