Sixth grade. According to the inquiry "Worry-Free Test Network", the enrollment of Puyang Primary School in Henan Province ended after completing six years of primary education. Primary school begins in grade one and ends in grade six. Therefore, in the primary school in Puyang, Henan Province, the sixth grade of primary school is over. Puyang is the northeast gateway of Henan Province, an important sea passage of the Central Plains Economic Zone, and a regional central city for inter-provincial conferences in Henan, Shandong and Hebei. Beijing-Kowloon Railway and Jinyu Road Railway meet here, and many expressways such as Daguang Expressway, Puhe Expressway, Lin Nan Expressway and Pufan Expressway run through the whole territory.