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  • Establishing a Process Evaluation Platform for College Courses Based on WeChat
  • YANG Yahui, LIANG Jianxin, YANG Caixia, LIANG Enxiang, WANG Guoxiang, ZHOU Congshan
  • The current process evaluation methods of college curriculum teaching are labor-intensive, inaccurate, and lacks the necessary platform. Taking the advantage of the easiness in use and communication of Wechat, a process evaluation platform was constructed to improve teaching. This Wechat-based platform is proved to be effective in encouraging autonomic learing, improving the learning outcome, and promote the mutual improvement of students and teachers.
  • DOI:10.3866/PKU.DXHX201808015
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  • Research on Teaching Mechanism of Instrumental Analysis under the circumstance of Production, Teaching, Research and Application
  • GUO Ming, HU Fangyu, WU Ronghui, ZHOU Jianzhong, WEN Xianhong, LI Minghui, LI Sha
  • “Production-teaching-research-application” is one of the important approaches in higher education. In order to improve the teaching effect of the “instrumental analysis” course, and to strengthen the training of the students’ professional ability, scientific research ability as well as the enterprise problems resolving ability, this paper, based on the analysis of the existing problems of the instrumental analysis course, make a teaching research of the “instrumental analysis”. The teaching mechanism, teaching methods, the construction of resource-sharing platform, the construction of teaching team and the teaching assessment of “Production-teaching-research-application” are explored, and the integration of “Production-teaching-research-application” was carried out. The purpose of this research is to further enhance the quality of talents training, and provide a solution for adapting the cultivating talents to the practical need of talents.
  • DOI:10.3866/PKU.DXHX201809010
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  • Key and General Content Selection of Inorganic Chemistry in Wuhan University
  • Kai HU, Ping CAI, Gongzhen CHENG
  • This paper briefly introduces the basic situation of content selection of the inorganic chemistry course in Wuhan University. Our basic teaching ideas are:taking "structure" as the main line that runs through the teaching, establishing the knowledge network and following the "application" and "essential" principles. With the guidance of these concepts, we integrate teaching contents to help students understand the basic concepts of chemistry and acquire the chemical way of thinking.

  • 2018, Vol.33 No.9 DOI:10.3866/PKU.DXHX201803046
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2018 Vol. 33,No. 9Published:28 September 2018
Special Subject
  • Exploring the Education Scheme for Undergraduates of Chemistry Major in a Comprehensive University
  • Yi WU,Hangju WANG,Qiulin TIAN,Lin ZHUANG
  • To carry out the undergraduate education objective of Wuhan University, the College of Chemistry and Molecular Sciences in Wuhan University had revised and compiled the 2018 edition of the education scheme. The 2018 edition features the strengthening of the mastery of mathematics and physics, the concentration on the improvement of problem-solving skills, the requirement for all the students to take "scientific research training and practice", the dramatic reduction of the required credits for elective courses, the advocating of personalized development, and the encouragement for taking interdisciplinary courses and cross-major courses.

  • 2018, 33 (9): 8-15 DOI: 10.3866/PKU.DXHX201804007
  • Reform and Practices on the Construction of Characteristic Undergraduate Training Program for Chemistry Major
  • Yun ZHANG,Lin JIANG,Yan SU,Xiaoshuang MA,Xinrui ZHONG,Menglong LI,Chengbin ZHENG
  • The construction of scientific and characteristic undergraduate training program is the prerequisite to the undergraduate education. This paper focuses on the reform and revision of undergraduate chemistry curriculums by the College of Chemistry at Sichuan University. It summarizes the basic approach of building a characteristic undergraduate training program from the following aspects:defining education objectives, identifying the features and advantages, innovating the cultivation mode and designing the curriculums. This work also provides certain implications to the training program construction of related disciplines.

  • 2018, 33 (9): 21-27 DOI: 10.3866/PKU.DXHX201807024
  • Design of Curriculum System and the Reform of Pedagogy in the Chemistry Majors of Normal University
  • Yang DENG,Jian WAN
  • The development of chemistry majors in normal universities has their own histories, and the characteristics are also different from chemistry majors in comprehensive universities. In order to cultivate talents with specialty, the curriculum system in the chemistry majors of normal university should include general courses, core disciplinary courses, and personal developmental courses, which are designed specifically based on the characteristics and needs of different kinds of students. The pedagogy in the chemistry majors of normal university should embody the chemical thinking and modern teaching principles and methodologies, and integrate the process and characteristics of chemical research with teaching process and methods deeply.

  • 2018, 33 (9): 33-37 DOI: 10.3866/PKU.DXHX201803054
  • Key and General Content Selection of Inorganic Chemistry in Wuhan University
  • Kai HU,Ping CAI,Gongzhen CHENG
  • This paper briefly introduces the basic situation of content selection of the inorganic chemistry course in Wuhan University. Our basic teaching ideas are:taking "structure" as the main line that runs through the teaching, establishing the knowledge network and following the "application" and "essential" principles. With the guidance of these concepts, we integrate teaching contents to help students understand the basic concepts of chemistry and acquire the chemical way of thinking.

  • 2018, 33 (9): 47-51 DOI: 10.3866/PKU.DXHX201803046
  • Establishment of Teaching System for "Chemistry and Society" Course
  • Ping CAI,Kai HU,Gongzhen CHENG
  • In this paper, the curriculum system construction of "Chemistry and Society" is introduced, which focuses on highlighting the "general education" of this course. The course aims to improve and enhance the students' ability of critical thinking by helping students to clear up misunderstanding of chemistry and introducing the chemical common sense to students.

  • 2018, 33 (9): 52-54 DOI: 10.3866/PKU.DXHX201804004
Study and Reform of Chemical Education
  • How to Cultivate Students' Consciousness of Thinking in Basic Chemical Laboratory Teaching: Taking Synthetic Experiment as an Example
  • Yanping REN,Yinyun LÜ,Zhiqiang DONG
  • Taking classical synthetic experiments, the syntheses of potassium dioxalatocuprate (Ⅱ) dihydrate and potassium trioxalatoferrate (Ⅲ), as examples, this article discusses the effects of synthetic conditions on the "quality" and "quantity" of the product. Moreover, a flowchart clearly shows the cases when the students fall into a wrong path due to the lack of rethinking and judgement during the synthesis of potassium trioxalatoferrate. The article also discusses on how to inspire students to analyze when they were misguided. Therefore, this article reveals on how to educate students to think and criticize in the teaching process.

  • 2018, 33 (9): 55-61 DOI: 10.3866/PKU.DXHX201802004
  • Research and Practice of Stratified and Blended Teaching in Analytical Chemistry Laboratory Course
  • Yuan ZHUANG,Zhe YAO,Jianqiang LI,Chengwen CHAI
  • The experiences of stratified teaching in analytical chemistry laboratory course were discussed. Through reforming the curriculum and teaching materials, modularizing the instruction content, offering compulsory and optional experiments, dividing and improving the examination and evaluation mechanism, a stratified teaching system for different majors and students was established. The specific mode such as the grouping principle of the experiments, implement of selective experiments and the experiment preparation were discussed under stratified teaching system. Blended Learning was used to make the learning process more effective.

  • 2018, 33 (9): 62-68 DOI: 10.3866/PKU.DXHX201712011
Chemistry Laboratory
  • Synthesis and Characterization of NaA Zeolite Membranes Prepared by the Secondary Growth Method: A Research-Based Comprehensive Experiment
  • Liangqing LI,Qipeng SONG,Jinjian ZHANG,Chenchen DAI,Chengxi LIAN,Sa FENG,Jiajia LI,Jinqu WANG
  • A research-based comprehensive experiment was introduced:synthesis and characterization of NaA zeolite membranes prepared by the secondary growth method. NaA zeolite crystals were introduced into the outer surface of α-Al2O3 porous tubes, then NaA zeolite membranes were prepared by the secondary growth method. The morphology and structure of the support, the NaA zeolite crystals and membranes were characterized by SEM and XRD, and the separation properties of the membranes were tested by pervaporation separation device for dehydration of ethanol. Through this experiment, students can understand membrane separation technology that is the frontier of scientific research, which arouses students' interest in scientific research and cultivates students' research ability. Moreover, this experiment covers synthesis, characterization and performance test, which contains more knowledge points in wider coverage of disciplines. It is helpful to foster students' innovative consciousness and practical skills, as well as promoting their integrative skills of applying knowledge.

  • 2018, 33 (9): 69-74 DOI: 10.3866/PKU.DXHX201802025
  • Synthesis of Metal-Organic Framework Nanocrystals and Research on Its Adsorption of Dye
  • Zhengping QIAO,Mingda YIN,Xianfang XU,Huazhen HUANG,Sujun YAN,Huijuan PENG,Zongwan MAO
  • A research-type comprehensive experiment, which involves synthesis, characterization and application study of metal-organic framework (MOFs) nanocrystals, was introduced. A creative strategy was used to prepare metal-organic framework nanocrystals with smallest particle size amongst published MOFs. The essential characterization methods for nanomaterial and adsorption kinetics study were presented so that the students can get knowledge of the research in the nanomaterial field. The experiment system can serve to stimulate students' interest in scientific research and innovation consciousness and train students' chemical thoughts by analysis of the results from different react conditions.

  • 2018, 33 (9): 75-81 DOI: 10.3866/PKU.DXHX201802015
  • Experiment of Membrane Distillation for Seawater Desalination: A New Membrane Separation Chemical Engineering Experiment
  • Mingli GAO,Hongyan FENG,Chenxiao JIANG,Wengen JI,Tingting XU,Yuxi WANG
  • A membrane separation experimental project of chemical engineering was introduced, and it had been applied to the undergraduate laboratory teaching. The effect of the membrane distillation for seawater desalination was investigated. From this project, the students learned the advanced knowledge of membrane distillation and experimental technology of membrane distillation for seawater desalination. They also increased application consciousness of transforming scientific and technological achievements into productivity.

  • 2018, 33 (9): 82-87 DOI: 10.3866/PKU.DXHX201802018
Self Studies
  • Applications of Centroid Fractional Coordinates in Locating Interstices in Close Packings of Equal Spheres
  • Wenjing ZHANG,Huabiao TANG,Yanyan ZHU,Donghui WEI,Chunmei LIU,Mingsheng TANG
  • Deep understanding of the nature and characteristics of close packings of equal spheres is fundamental for further study towards structure and property of metallic crystals. And the knowledge to number and distribution of various interstices in close packings of equal spheres is very important to help illustrate the structure and property of ionic crystals. However, the diversity and complexity of the crystal structures make it difficult in teaching and learning structural chemistry. In this paper, based on discussions on the three most common close packing models (A1, A2, A3), a method to locate centers of interstices according to calculating the centroid fractional coordinates (CFC) of particles constructing these interstices was introduced. In addition, the way using CFCs to calculated distance between vertex and interstice center and the shortest distance from interstice center to surface of the packing sphere was also illustrated in detail. Compared with the traditional solid geometry method, the CFC method is demonstrated to be much simpler, easier to learn, and most importantly, helpful for understanding number and distribution of various interstices in close packings.

  • 2018, 33 (9): 95-104 DOI: 10.3866/PKU.DXHX201802035
Future Chemist
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