The PEP version of the sixth grade mathematics in Yang Xiaoyang, Hunan Province uses the textbook "Mathematics for Primary Schools in Hunan Province", which is compiled according to the Curriculum Standards for Compulsory Education and has been applied in many provinces in China. Xiangyang belongs to Hubei province. Xiangyang, formerly known as Xiangfan, is a prefecture-level city under the jurisdiction of Hubei Province, a sub-central city in the province, a central city in the Hanjiang River basin and a member of the urban agglomeration in the middle reaches of the Yangtze River.