On July 24, 2020, the seminar on the teaching application of digital information system laboratory and virtual simulation experiment was successfully held in Qinhuangdao City, where Shanhaiguan, known as the "first pass in the world" is located. The seminar was organized by Qinhuangdao Teaching Instrument Management and Supply Station, aiming to implement the Ministry of education's "Opinions on Strengthening and Improving Experimental Teaching in Primary and Middle Schools" (Education Foundation [2019] No. 16). This seminar integrates cutting-edge scientific and technological knowledge and the latest technological achievements into experimental teaching, and explores and practices the positive role of digital experimental equipment and virtual simulation experiments in experimental teaching.

The leader of the municipal instrument station made a speech for the opening of the seminar. He elaborated on the current educational background and the guiding spirit of the relevant documents of the Ministry of education, and looked forward to the development direction of contemporary education. Experimental teaching will be the development focus and inevitable result of education. The participants of this seminar included more than 50 people, including the heads of instrument stations in all counties and districts, the specific principals of experimental teaching, and the members of Qinhuangdao primary school science, junior and senior high school physics, chemistry, and biology experimental teaching expert team.

After the seminar started, the professional and technical personnel of Yuanda-llongwill explained in detail the composition, advantages, characteristics and application cases of the digital information system laboratory for the participating teachers, and made special explanations for middle school physics, chemistry, biology and primary school science. During the seminar, Mr. Zhu Hao, a biology teacher from Shanhaiguan No.1 middle school, shared the research on the mechanism of using pH sensors to explore the maintenance of pH stability of organisms. At the end of the activity, station head Mr. Liu organized all participants to discuss and study how to use digital experiments to promote the reform and innovation of teaching methods based on their respective teaching background. The participating teachers spoke enthusiastically, highly recognized the digital information system laboratory, and hoped to provide more support and help in teaching equipment and technology.

At present, many schools in Hebei Province, including Hebei Hengshui middle school, Shijiazhuang No. 2 middle school, Xingtai No. 1 middle school and Shijiazhuang No. 1 middle school, are equipped with llongwill® digital information system laboratory has been used in national teaching and exhibition activities for many times. With the deepening of educational reform, the application of digital experiment in teaching activities is gradually realizing normalization, which also provides a strong guarantee for students to find and solve problems. Yuanda-llongwill will continue to improve the quality and service, and contribute to promoting the reform of experimental teaching working together with teachers.