I know I usually would need a guidance counselor rec, and two teacher recs, but can I also send in an extra from an activities supervisor? I feel this would greatly benefit my application.
This would bring the total to 4, which I don’t think is unreasonable.
Unless a college specifies otherwise that would be fine.
The general rule for recommendations is 1 guidance counselor, 2 teacher, and an optional supplemental letter from someone who can talk about skills/achievements outside of the classroom.