Do you think it is normal or okay that a sub goes on a field trip instead of the teacher. I am subbing first grade today and found out last night I am going on a field trip to a farm. I think it will be fun but nervous as I do not know the class yet. I think it would be better if the kids were older or in a more controlled area but I hope it goes well! My guess something came up that was significant with the teacher that she couldn't be there.