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Chinese Journal of Chemical Education  
  Chinese Journal of Chemical Education--2018, 39 (13)   Published: 02 July 2018
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Chinese Journal of Chemical Education. 2018, 39 (13): 0-0.
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Statistical Analysis of Keywords in Senior High School Chemistry Curriculum Standards of China

ZHANG Fang-Gang, ZHU Si-Guang, KONG Ling-Peng
Chinese Journal of Chemical Education. 2018, 39 (13): 1-5. ;  doi: 10.13884/j.1003-3807hxjy.2018010157
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From the three aspects of training objectives, discipline competencies and academic requirements, this paper made a statistical analysis of keywords in Senior High School Chemistry Curriculum Standards (2017 and 2003 Edition), as references for chemistry teachers to accurately grasp the connotation of the new curriculum standards.

Teaching Logic of “Redox Reaction” Based on Literature Analysis

YAN Chun-Geng, NI Jun-Chao, SHA Jing, ZHOU Qing
Chinese Journal of Chemical Education. 2018, 39 (13): 6-9. ;  doi: 10.13884/j.1003-3807hxjy.2016050039
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This paper selected 15 articles on the "redox reaction" lesson study to analyze the teaching logic of "redox reaction", and concluded 4 kinds of teaching logic, such as "directly telling chemical reaction classification standard" "critical exploring chemical reaction classification standard" "revealing the nature of chemical reaction" "critical understanding the process of knowledge evolution". Finally, this paper analyzed the four kinds of teaching logic from "what was knowledge in this lesson" and "how did the knowledge can be understood".

Teaching Design of “Silicon” to Promote Formation of Classification Thought

TAO Jie, LI Yuan-Rong, ZHU Shu, XIAO Fu-Lin
Chinese Journal of Chemical Education. 2018, 39 (13): 10-15. ;  doi: 10.13884/j.1003-3807hxjy.2016050058
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This paper carried out the teaching design of "the leading role of silicon in inorganic nonmetallic materials" based on the classification of the main components of the silicon containing materials. The silicon containing material as carrier, this paper tried to promote the formation of students' classification methods and classification ideas, so as to promote students' understanding of why silicon was the leading role of inorganic non-metallic materials in the process of implementation of the target of knowledge and skills about "silicon and its compounds".

Teaching Design of Mole Based on the History of Amount of Substance

DAI Fei
Chinese Journal of Chemical Education. 2018, 39 (13): 16-19. ;  doi: 10.13884/j.1003-3807hxjy.2016060105
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Taking "the unit of amount of substance-mole" as an example, this paper tried to introduce the concept of mol from the set in mathematics, the amount of substance from mol, and molar mass from C12, and pointed out that concerning on the origin and development of concept would help students to understand the meaning of the concept more deeply and accurately.

Teaching Design of “Ammonia and Ammonium-Nitrogen Fertilizer” for Developing Decision-Making Ability

ZHANG Xue, LIU Bing, JIANG Wen-Jun
Chinese Journal of Chemical Education. 2018, 39 (13): 20-26. ;  doi: 10.13884/j.1003-3807hxjy.2016070117
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Taking "ammonia and ammonium-nitrogen fertilizer" for example, this paper established the teaching design ideas for developing decision-making ability, included the following aspects:determining the decision-making events, setting contexts, designing issues, activities and teaching evaluation. Then, based on the 4 aspects of production-transportation, design-renewal, storage-using and rational comment, this paper made the teaching design of ammonia and ammonium nitrogen based on the decision-making ability. At the same time, the properties of ammonia and ammonium-nitrogen fertilizer were embedded in the solving process of the decision-making events.

Analysis of Chemistry Classroom Language Behavior Characteristics Based on Excellent Lessons

YANG Guo-Ping, ZHANG Jia-Meng
Chinese Journal of Chemical Education. 2018, 39 (13): 27-29. ;  doi: 10.13884/j.1003-3807hxjy.2016060104
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Using Flanders interaction analysis theory, this paper analyzed ten excellent lessons from four aspects, such as the teaching classroom structure, teaching atmosphere, commonly used teaching behavior and innovation of questions, and provided a useful reference for online teachers to better grasp the teaching essence of the content of inorganic elements and compounds and normalizing the excellent lesson.

Teaching Case Study of Improving Students' Chemical Willpower by CAFP

SONG Yu, ZHOU Li-Ping
Chinese Journal of Chemical Education. 2018, 39 (13): 30-37. ;  doi: 10.13884/j.1003-3807hxjy.2016060014
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In view of the current problems that many students lack chemical willpower, this paper put forward that taking students' cognition, emotional arousal, emotion and will as the main control object, and tried to carry out CAFP teaching research in the process of preview, trial learning, cross collocation and cooperative learning, in order to promote the emotional factors of cognitive mobilization, motivation, strengthening and other functions.

Teaching Strategy Design and Its Schematic Representation for Developing Excellent Chemistry Teacher

YANG Cheng-Yin, SU Lin
Chinese Journal of Chemical Education. 2018, 39 (13): 38-43. ;  doi: 10.13884/j.1003-3807hxjy.2016070088
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On the basis of the "Concept Map and Mind Map", this paper designed teaching strategy as a visualized teaching flow chart by the computer software or the hand drawing system, could convert the teaching goals design intention to a more detailed teaching activities process design, in order to achieve the effective integration of teaching goals, teaching process, measurement and evaluation.

Review and Enlightenment of the Development of Chemical Experiment Teaching in High Schools

SUN Jia-Lin, ZHENG Chang-Long
Chinese Journal of Chemical Education. 2018, 39 (13): 44-49. ;  doi: 10.13884/j.1003-3807hxjy.2016100032
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According to the time context, the chemical experiment teaching of high school in our country was divided into four main stages. The third stage was "bring order out of chaos", the rapid development period, accompanied by "the great cultural revolution" ending, the convening of The Third Plenary Session of the 11th Central Committee of CPC, Chinese education has ushered in a new era of development. In this historical period, the high school chemical experiment teaching revolved around the center of the country, the educational function had been continuously expanded, the teaching quality has been improved continuously. In the teaching practice, some new teaching ideas and teaching methods had been produced, the teachers' competence had been improved continuously, and the experimental teaching theory also got development.

Teaching Experiments on Degree of Hydrolysis of Salts and Its Internal Cause Based on Cognitive Model Construction

WANG Ping, WANG Li-Li, ZHANG Yan-Hua, FU Jin-Song, MU Dai-Dong
Chinese Journal of Chemical Education. 2018, 39 (13): 50-53. ;  doi: 10.13884/j.1003-3807hxjy.2017120013
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This paper analyzed the internal cause of the degree of hydrolysis of salts from the perspective of cognitive model construction. In order to investigate the influences of periods, main groups and constitutions, Na2CO3,Na2SiO3,Na2GeO3,NaHCO3,FeCl3,ZnCl2 and CuCl2 were chosen as experimental substances, precise pH indicator paper and turbid meter as characterization method to design the related teaching experiment, so as to enable students understand the conclusion about the degree of hydrolysis of salt is based on its composition and structure in a more efficient way by the experimental fact. The experiment was simple and the phenomena were obvious, which could effectively help students construct the scientific conclusion.

Exploring the Stability of Anthocyanin in Black Wolfberry

TANG Jing, WEN Ning-Hong, NI Gang, WU Xiao-Hong
Chinese Journal of Chemical Education. 2018, 39 (13): 54-58. ;  doi: 10.13884/j.1003-3807hxjy.2017010076
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This paper studied the factors affecting the stability of anthocyanin in black wolfberry, such as acidity and alkalinity of solution, temperature, and ion species. The results showed that anthocyanin was stable in weak acid and weak alkali, low temperature environment, solution which dissolved in Na+, K+, Mg2+, Ba2+, Cl-, SO42-, and with poor stability in strong acid and strong alkali, high temperature environment, solution which dissolved in Ca2+, NO3-, CO32-. The different color of anthocyanin in distilled water and tap water was because of the presence of Ca2+. The designed experiment was simple, safe, fun and easy to operate.

Experimental Inquiry on Combustion of Sulfur in Air and Oxygen

YANG Mian-Yan
Chinese Journal of Chemical Education. 2018, 39 (13): 59-60. ;  doi: 10.13884/j.1003-3807hxjy.2017010025
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This paper used common experimental instruments such as flask with three necks, igniter device for lighting a gas flame, constant pressure funnel to design experiment device, in which the combustion of sulfur in the air, the preparation of oxygen, the combustion of sulfur in oxygen, and the absorption of sulfur dioxide were completed. And the shortcomings of the experiment in the textbook were solved. The experimental improvement could cultivate students' creative ability and environmental awareness, and then improve teaching effect.

Discussion on Inquiry on Alternating Current Electrolysis Process

CHEN Xiao-Yun, SHI Zhi-Bin
Chinese Journal of Chemical Education. 2018, 39 (13): 61-63. ;  doi: 10.13884/j.1003-3807hxjy.2017010022
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This paper inquired the electrolysis of NaCl, NH4Cl and FeCl3 solution under the action of alternating current, it was found that chlorine could be produced under certain conditions, and then briefly analyzed the performance of electrode in alternating current electrolysis, and put forward a different view on "electrolysis of alternating current was mainly electrical energy into heat energy, and hydroxyl ions discharged easily than chloride ions under the action of alternating current".

Principle Derivation and Experimental Verification of Oxidizing Conditions for the Extraction of Iodine from Kelp

LONG Qi
Chinese Journal of Chemical Education. 2018, 39 (13): 64-68. ;  doi: 10.13884/j.1003-3807hxjy.2017020038
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This paper used Nernst equation and reduction potential data to deduce, and through experiment verification, it was found that the extraction of iodine from kelp needed acidic condition and the best oxidant was ferric salt. The concentration of ferric salt and pH of solution were not needed to be controlled specifically, ferri ion could oxidize iodide ion to iodine while further oxidation did not occur.

Meaning of Ion Potential and Its Effect on Material Properties

WANG Hai-Jun
Chinese Journal of Chemical Education. 2018, 39 (13): 69-74. ;  doi: 10.13884/j.1003-3807hxjy.2017020064
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This paper discussed the meaning, influencing factors, variation law, and the relationship with polarizability of ionic potential, and its effect on the properties of material. This study accurately grasped the connotation and extension of this concept, deepened the understanding of ion potential and polarizability, constructed the thinking model, and broadened the application field of vision.

Inquiry on Esterification Reaction Teaching Problems by Reaction Mechanism

LIU Shuai, CAI Xiao-Man, MA Xia-Jun
Chinese Journal of Chemical Education. 2018, 39 (13): 75-78. ;  doi: 10.13884/j.1003-3807hxjy.2017070004
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Based on the investigation of the related literatures, from college entrance examinations and textbooks, this paper explained related esterification reaction problems about reagent addition scheme and isotope tracer method by the acid catalytic mechanism, in order to make high school teachers and students understand the esterification reaction.

Important Position of Stereochemistry in Organic Chemistry: Analysis of Theoretical Test Questions of Chinese Chemical Olympiad

YANG Tian-Yi, ZHANG Jie
Chinese Journal of Chemical Education. 2018, 39 (13): 79-81. ;  doi: 10.13884/j.1003-3807hxjy.2018010015
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This paper analyzed the examination questions of theoretical test (preliminary and final) of Chinese Chemical Olympiad from 2015 to 2017, it was found that the contents of stereochemistry in organic chemistry had been won high favor, which highlighted the absolute importance of stereochemistry in organic chemistry.

Chinese Journal of Chemical Education. 2018, 39 (13): 5-5. ;  doi: 10.13884/j.1003-3807hxjy.2018010088
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Chinese Journal of Chemical Education. 2018, 39 (13): 53-53.
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