This is the 9140th most frequent Russian word.
своим
"Своим" means "one's own" or "to/for one's own" depending on context and grammatical case.
The word "своим" is used possessively here to indicate ownership or association with the speaker, emphasizing that it is the speaker's experience being shared.
Я поделился своим опытом с коллегами.
I shared my experience with colleagues.
In this sentence, "своим" is used to show that the help is directed specifically towards his own friends, indicating a close relationship.
Он помогает своим друзьям в трудных ситуациях.
He helps his friends in difficult situations.
Here, "своим" indicates that the teachers being mentioned are those associated with 'us,' making it clear that the gratitude is towards the teachers of the subject group.