 A PT is not a headteacher or a School Principal and is not usually exclusively responsible for running a school, although this may be the case in smaller, rural schools or those with a part-time Head Teacher.Recently, most local authorities have been following a policy of reducing the number of principal teachers in secondary schools by combining departments and having PTs titled 'curriculum leaders' or 'faculty heads', who essentially carry out the same responsibilities but over more than one department.For example, History, Geography and Modern Studies are all separate departments and may have their own Principal Teacher however in a Curriculum Leader system these three departments would form the Social Sciences Faculty, headed by one person.