This is something I am trying to analyse. Beyond 25 years, I had noticed how my mother taught to her students. She was teaching in primary classes. So, I heard always the phrases “subject integration”, “learning by doing “with regard to her professional talks with her colleagues; and I was not a teacher. I review that, John Dewey’s idea of “learning by doing” advanced and applied in education as a teaching learning methodology called Project –based learning (PBL), was well implemented in her classroom. Her class often went out of the school; surely with permission and with an assistant teacher. (As a child of her, I remember I was worrying about her walking and getting tired, with a class of kids).She had walked along village roads with her students creating a playful and enjoyable atmosphere. She had visited some places with streams or small lakes, tea plantations, paddy fields and official places like surveying institute. Students had come back with a lot of knowledge and experien...