Delivery of the curriculum seeks to cater for the ability and learning needs of the individual. Class placement aligns with the students' educational requirements. Specialist teachers and teacher aides provide curriculum support within classes and to individuals and small groups. The school provides a supportive environment in which all students can flourish whatever their ability. We seek to enrich, enhance and extend the talents of our students through our varied curricular and co-curricular programmes.

Co-curricular participation is strongly encouraged as it is an important part of how the school helps develop the whole person. All interests and ability levels are catered for in the co-curricular programme. Christchurch Girls' High School students excel on the national stage in both sporting and cultural pursuits and give dedicated service to local and national community organisations.

Student leaders contribute to the support and development of school life.