Through this kind of activity, teachers guide students to study and master cultural and scientific knowledge and skills purposefully, planned and organized, promote the improvement of students' quality, and make them become people needed by society.
Teaching plays a very important role in the development of human civilization and promotes great scientific and technological progress. The great changes brought about by scientific and technological progress in the twentieth century to human production and life are really amazing. Since ancient times, people's fantasies of "clairvoyance", "clairvoyance", "flying into the sky" and "flying into space" have all come true in this century.