From this paper, I get knowledge about what teachers believe when they are teaching. If I look to my experiences when I am teaching, I remember with Art-Craft Conceptions that the teachers have to explore their methodology, and then they teach the students with unique way in every situation. My experience is when I am teaching in the remote area, I have to get my students attention and make the lesson more interesting than their hobbies. Actually, I very confuse with what I have to do, but because I remember the theory from Maslow about motivation and the theory from Piaget about cognitive development, I apply the theories and the result is I make the classroom environment more interesting and better to support the teaching and learning process. Then about Theory-Based Approaches, my experience is when I am teaching in one of Junior High School in Sungai Lilin, I find the situation that one of the students ask me why the result of her exam is better than before. Then I explain to her, if she is doing well with her exam and I am not give a mark just from the exam but also her attitude toward the learning process.