There are several single-sex schools ; Shirley Boys ' High School and Christchurch Boys ' High School are the two state boys ' high schools , Avonside Girls ' High School and Christchurch Girls ' High School are the state girls ' high schools in Christchurch .
There are several single-sex schools as follows : Shirley Boys ' High School , Christchurch Boys ' High School , Avonside Girls ' High School and Christchurch Girls ' High School .