Complex sentence: Chapel is required three times a week and all of the student's most important days of the four-year school experience are centered in the Chapel from day one at the welcoming ceremony clear through to the Senior Chapel Talks given by all senior Chatham Hall students.
Split into simpler sentences: Chapel is required three times a week and all of the student's most important days of their four year school experience are centered in the Chapel. From day one at the welcoming ceremony clear through to the Senior Chapel Talks given by all senior Chatham Hall students.