Preliminary understanding of decimals. According to the interview questions of primary school teaching resources over the years, the teacher qualification certificate is the license of teachers in the education industry in common examinations such as "Preliminary understanding of decimals", "Division in tables" and "5, 4, 3, 2 plus several". In China, graduates of normal universities must pass the examinations of pedagogy and educational psychology offered by the school in the final exam of the semester.