On May 13-14, 2024, the School of Education conducted activity 1: The School of Education aiming to become the Green Office activity under the project to develop an ecosystem for quality learning according to the Green University criteria and 5S activities to promote the health of personnel in the organization by Associate Professor Dr. Ruksit Suttipong, the dean, was the president to opened the ceremony, along with administrators, and supporting staff at the School of Education meeting room and through online (Zoom meeting). It was honored by Dr. Prach Pingmuanglek, Environmental Supervisor, Division of Building and Facilities, University of Phayao lecture to provide knowledge on the topic knowledge and understanding of greenhouse gases in the office, identifying resource and environmental issues, waste management by using the 3R method, and providing knowledge about environmentally friendly products and services to provide administrators and personnel with knowledge and understanding about green offices. In addition, there have been 5S activities namely: clearing up, organizing, cleaning, standardizing, and training & discipline to enable personnel to have a good attitude in maintaining the cleanliness of the workplace and participate in the conservation of natural resources and the environment, including supporting the administration of the School of Education to meet the requirements of laws regarding energy and environmental conservation.