Elementary Education. Big data is more inclined to science, suitable for mathematically sensitive rational students, in the course will also be inclined to science, professional knowledge requirements are higher, the foundation also needs to be more solid, while primary education is more inclined to liberal arts is more acceptable, professional knowledge is more comprehensive, the requirements are not high therefore primary education is simpler. Primary education is mainly the study of pedagogy, psychology, literature, elementary school curriculum teaching and other aspects of the basic knowledge and skills, analyze the physical and psychological activities of children aged 6-12 years old, cultivate good humanistic qualities, psychological qualities and professional ethics of teachers, elementary school education and teaching of language, mathematics, English, moral and other disciplines, the children's education and psychological counselling and so on.