Complex sentence: For each band (period), subject teachers in designated RCs will always be there to facilitate students in Academics, students who are free may head to the RCs for assistance in homework, projects etc. or socialize with others.
Split into simpler sentences: For each band (class period), subject teachers in designated resource centers are there to facilitate students in academics. Students who are free may go to resource centers for assistance in homework, projects, or independent study, or to socialize with others.