In Senior School at Holy Cross College, the Year Ten, Eleven and Twelve courses become increasingly focused and specialised. Students can choose from a range of subjects that will prepare them for tertiary or vocational pathways. The Year Ten students start in Term Four (Spring Term) of what would traditionally be Year Nine, in order to give Year Twelve students four terms to complete their work in their final year of schooling. The College offers students ATAR, General and Uni-Ready pathways. Uni-Ready is an alternative pathway for Year Eleven and Twelve students to access a selection of Curtin University courses.
In Year Ten, students start thinking about their pathway and is the first year level at the school to have examinations. Year Ten students meet individually with senior teachers at the College to ensure that they are selecting courses in Year Eleven in which they have the ability to thrive.
Students in Year Ten are prepared for the increased rigour needed for ATAR courses through extension in English, Mathematics and Science. In Years Eleven and Twelve, students can access ONSITE, which is a College Workplace Learning Programme. Students spend one day per week in an industry of their choice. With the benefit of an ONSITE programme behind them, students can be better prepared to find their niche in industry. Students who are accepted into the Specialist ONSITE programme have access to specialised training in numerous areas. In these specialised courses, ONSITE manages the workplace training while TAFE deliver the qualification. The College also has access to a selection of TAFE courses that can be completed offsite while at school.