The 20th century was known as the century of science. In the early part of the 20th century, there was progress in science and technology in the fourth quarter of the 20th century. In the 21st century, the population is increasing rapidly. At the same rate, people's living conditions are also changing. Today every field of life is covered by science and technology. Therefore, the overall social life of the nation has changed. In this changing situation, the role of the teacher has also changed. Teaching is not the end of the work, but beyond the daily work, a teacher has to fulfill a huge responsibility.