I'm currently pursuing a Master's/PhD integrated program at a university in Korea. It's my first semester, and I along with two other first-semester students are TA'ing for our advisor's undergraduate class.
Our professor is very busy for various reasons. Conferences, events, seminars, etc., and due to this schedule he won't be able to teach three classes in November. He called us into his office and said that "How would you guys like to each teach one of those classes? It's an undergraduate course and so it shouldn't be too hard, plus it'll be great experience."
My response was (almost word for word) "Professor, I'm really flattered that you think so highly of us, but I'm not sure if it would be appropriate for us to teach a class. We're graduate students, but we're still in our first semester. Wouldn't it be better and safer for your reputation if you asked one of the PhD students or research professors, or if you scheduled a separate make-up class instead? I'm mentioning your reputation because many students probably believe that it's inappropriate for relatively inexperienced and less knowledgeable students like us to teach them when they're paying tuition to be taught by experts in the field."
In the end he said he appreciates my feedback but that he'd probably find it difficult to schedule a make-up class, and that "the PhD students and research professors are too busy," also adding that "I want to do you guys a favor by giving this opportunity and experience to you."
Preparing and teaching a class isn't the problem, but I'm just wondering is this normal? I've heard of PhD-level students teaching classes in these situations, but freshmen like us? I'm honestly very concerned.