TPACK

TPACK is a way of thinking about how you can use technology in your classroom. TPACK stands for Technological Pedagogical And Content Knowledge. Technological knowledge is the knowledge we need as teachers to understand and use different forms of technology. Pedagogical knowledge refers to knowledge and skills related to teaching. Content knowledge is the knowledge we have about a particular subject.
It is necessary for teachers to have knowledge about these things, because it makes us more well-rounded teachers. We obviously need to have an understanding of the content we will teach our students, but it is just as important to know how to best teach that content. Also, since we live in a technological world, we need to understand technology so we can successfully integrate uses of technology into our lesson plans.