Grammar fix

school principal

head of school

The person in charge of a school, responsible for managing teachers, students, and daily operations.

collocationB1common

Hear it in context

Notice where the phrase sounds natural.

The school principal greeted all the students on the first day of term.education
In my opinion, the school principal plays a key role in creating a positive learning environment for both students and teachers.IELTS speaking

Pattern: school principal (noun)

WrongShe is the principal of our school director.

RightShe is our school principal. / the principal of our school.

Don't pile up titles — 'the principal' or 'head teacher', not 'principal director'.

Patternschool principal (noun)

Choose the version that sounds natural in speech.

Stiff The chief administrative officer of the institution summoned him.

Natural The principal called him in.

'Principal' (or 'head') is plain; 'chief administrative officer of the institution' is absurd.

Words that usually travel with it.

school principal + context
the school principalhead teacherthe principal's officeprincipal of

'Principal' refers to the person, while 'principle' means a rule or belief.