J.J Cahill Memorial High School (JJCMHS) is located in Mascot, NSW. JJCMHS has a solid focus on community and works closely with families to support all students learning and well-being needs.

The school caters to students' needs with a wide range of academic abilities. Students come from diverse cultural and socio-economic backgrounds. The school includes a support unit that caters for students with mild and moderate learning needs.

JJCMHS is implementing the Positive Behaviour for Learning framework (PB4L) and Berry Street with the school community committed to honour, excellence, responsibility and opportunity. The school actively implements quality teaching and learning, evidence-based practice that includes learning intentions, success criteria and explicit timely feedback. Teachers working together collaboratively focusing upon data and research to improve the quality of teaching across the school is central to improving student outcomes.