The starry sky volume is a set of national primary school papers formulated by the education department, aiming at evaluating the academic performance and ability of primary school students. Its design takes into account the national education standards and curriculum requirements, so it can be applied to primary school students in all provinces of China. The starry sky volume contains questions from various disciplines, covering the breadth and depth of knowledge points, and can comprehensively evaluate students' learning situation. This test paper has been strictly compiled and audited to ensure the quality and fairness of the test questions. Therefore, the starry sky volume can be considered as a national primary school examination paper.