Refers to the donation and pledge activities organized by the school during the 50th anniversary of the primary school. Donation activity refers to the public collection of donations, materials and other forms of donations by schools to support the development of schools and improve the conditions for running schools. Subscription activity refers to the public distribution of specific souvenirs, commemorative books and other items for people to buy as a way to commemorate and support the school. These activities aim to unite the strength of alumni, parents and all walks of life and contribute to the development and education of the school.