Construction of the Applied Chemistry Major Experimental Teaching Center in the Background of Local University Type Transformation

The professional experimental teaching demonstration center is an important practice base for the cultivation of applied talents. The experimental teaching demonstration center of applied chemistry of Yancheng Teachers University was taken as an example to explore the construction of the professional experimental teaching system of local undergraduate university under the background of transformation. Furthermore, the methods to strengthen the students' engineering practice ability training, the students' application innovation ability training, and the experimental teaching quality guarantee mechanism have also been explored and discussed. Through the construction of the experimental teaching demonstration center, the quality of experimental teaching and the quality of applied talents could be improved.

the experimental and practical teaching as the main teacher responsibility system was implemented. The teacher, who is keen on the experimental practice teaching, has experimental and practical teaching experience, and strong sense of responsibility was selected as the course leader in each experimental practice class. Through the course leader to organize the group preparation, lectures, after-school discussion and exchanges, etc., the problems in the experimental teaching were solved to make the experimental teaching the best state. Secondly, the young teacher tutor system was implemented to form the echelon of experimental teaching practice taking the old with new. For the new teachers introduced in the past two years, the instructors would be assigned, and the new teachers would be taught for a period of time. Only after pass through the assessment of trials and experiments, the teacher could carry out the experimental practice teaching. Thirdly, the construction of a double-skilled faculty was strengthened. Through the activities of summer enterprises and institutions, the outstanding teachers would be assigned to the company for internships and part-time jobs to strengthen the engineering practice ability of teachers and the construction of double-skilled faculty. Fourthly, the selection of young and middle-aged teachers to go abroad for further study was intensify to provide them with more opportunities to reach the international frontiers of the discipline. Fifthly, the training of experimental technicians was strengthened to improve the management level of laboratories. The laboratory technicians were invited to visit and exchange studies in other universities to improve the technical level and practical skills of the technicians.

The reform of experimental (practical) teaching 4.2.1 The teaching philosophy
Adhering to the cultivation of talents as the foundation, the construction of applied chemistry brand in Jiangsu Province was taken as the leader to form the teaching ideas of "quality, knowledge and ability". Around the goal of talent training, the following four aspects of work in the process of experimental teaching reform have been completed in the center. Firstly, the team of experimental practice teachers with a high level of professionalism and strong sense of innovation was established. Secondly, some professional and comprehensive training room that is conducive to cultivate the students' innovative consciousness and innovative training were built. Thirdly, the chemical principle experimental devices were improved and updated, and some independent experimental devices was jointly developed with Nanjing Technology University to increase the number comprehensive experimental projects, cultivate the students' self-learning and comprehensive application ability and strengthen the cultivation of the students' design ability to improve the ability of students to work. Fourthly, the schoolenterprise alliance was strengthened to actively carry out the "government, industry, education and research" cooperation. The research activities were jointly carried out with enterprises so that the research results could directly be transformed technology to further shorten the distance between schools and enterprises.

The thoughts on teaching reform
The thoughts on teaching reform are as follows. The integration of theoretical teaching and experimental teaching was always emphasized in the process of center construction. The experimental teaching is a necessary link for the cultivation of applied talents, an important link between the integration of theory and practice, and also an indispensable link with social and economic development. Practice teaching and theoretical teaching should be mutually supportive, basic knowledge training and comprehensive design experiments should be rationally set, and intra-campus experiments should be seamlessly connected with off-campus internships. Firstly, the experimental teaching content was optimized to integrate the teaching resources and construct a reasonable system. The number of validation experiments was reduced and the proportions of comprehensive, designing, and innovative experiments were increased as much as possible while ensuring basic experiments. Secondly, the assessment of the experimental teaching process was improved. In the course of experimental teaching, the practical ability of the students' experiments could not be accurately assessed alone by the experimental operation and experimental report. In order to comprehensively evaluate the students' experimental skills, the comprehensive experimental assessment mechanism needs to be established. In addition to the regular test report, the close-book examinations related to the experimental content, the actual operation on the spot, and the on-site answer to the experiment should be added.

The teaching system and teaching content
The stereo and open practical teaching system based on the practical teaching within the training program, supplemented by the second classroom such as the students' practical innovation plan and various discipline competitions has been built [4][5] . The center adopts advanced teaching methods, systematic design and reform of the scientific and rational experimental teaching management system to guarantee the effective operation of experimental teaching and to realize the goal of cultivating high-quality applied high-level specialized talents. Details as follows: Firstly, the experimental teaching system closely with disciplines and professional development has been constructed. The future development plan of the center would be developed around the development trend of the two provincial key disciplines of chemistry and applied chemistry, the key disciplines of environmental engineering and material chemistry and the applied chemistry brand in Jiangsu Province to improve the talent training quality. Secondly, the teaching content has been updated to strengthen the connection between the theory two-way interactive teaching session between teachers and students has been also added to this platform to achieve rapid and effective teaching activities and organizational management. The center relies on the open management platform of Yancheng Teachers University, the graduation (design) paper management platform, the discipline competition management platform, and the university student innovation training management platform to carry out intelligent laboratory opening, graduation design and online course management for students. Through the informatization construction, the practice teaching management is further standardized, and the students are provided with a broader learning platform to promote the improvement of the practical teaching level.

Conclusion
In the experimental teaching of the applied chemistry major of Yancheng Teachers University, the traditional experimental curriculums were retained to ensure that students could conduct the basic experimental operations and experimental skills training. Some research (innovative) experiments at different levels were open to achieve multi-level and all-round opening in time, space, equipment and teaching content. The combination of "production, learning and research" was emphasized so that the students' experimental teaching could be better combined with the practical applications such as scientific research and engineering, and receives professional training and employment training. Through the practice teaching in the demonstration center, the training of applied chemistry professionals has been further strengthened and the efficient and excellent engineering education models have been formed.