TPACK

TPACK is the way in which we use or select technologies to teach a subject matter effectively to our students. It is essentially a framework that helps in the decision making  and incorporates the 3 main areas. Technical Knowledge(TK) Content Knowledge(CK) and Pedagogical Knowledge(PK). These 3 areas all merge together to form Technological Pedagogical Content Knowledge (TPACK). Refer to the picture below.

 

Source: Teaching with Technology in the Classroom