The four forms of essential knowledge are: a.self-knowledge, knowledge of behaviour, knowledge ...

The four forms of essential knowledge are:
         a.   self-knowledge, knowledge of behaviour, knowledge of integrating technology, and subject-knowledge
         b.   knowledge of behaviour, self-knowledge, subject-knowledge, and knowledge of educational theory and research
         c.   self and student knowledge, subject-knowledge, knowledge of educational theory and research, and knowledge of integrating technology
            d.   self-knowledge, knowledge of educational technology, knowledge of behaviour, and knowledge of students