Phosphorus chemistry has a long history and strong vitality in organic chemistry. Many famous name reactions involve the synthesis of organophosphorus chemicals or the application of phosphorus reagents. This paper reviews and summarizes important name reactions related to phosphorus chemistry, and introduces the important progress and applications with some latest examples.

The ancient gold artifacts shine brightly,and gold extraction process and component identification contain rich chemical knowledge and teaching cases.This article introduces the extraction process of ancient gold,the composition analysis and corrosion resistance of gold artifacts,as well as the causes of the unique colors of copper group elements.The aim is to explore the chemical secrets contained in ancient gold artifacts,highlight the cultural charm of gold artifacts,and demonstrate their chemical teaching value.

With the continuous deepening of first-class curriculum construction, formative evaluation as a part of curriculum construction has received more and more attention from front-line teachers and teaching management departments, among which the definition of formative evaluation and the design method of formative evaluation system are also the focus of people’s attention. This paper points out the basic characteristics of formative evaluation, puts forward the basic methods for constructing a formative evaluation system, and introduces the specific practical content and operation effects of courses such as environment monitoring course and instrumental analysis course, so as to explain that a formative evaluation system with multiple dimensions and corresponding teaching objectives will provide important support for the improvement of students’ learning outcomes.

This paper takes carbonyl compounds as an example to introduce a computational chemistry method that calculates the HOMO orbital energy of molecules, helping students compare and analyze the relative alkalinity of Lewis bases.The researchaims to cultivate students’ critical thinking abilities through this process, guide them to use modern research and analysis methods to predict the relative size of molecular reactivity, understand the mechanisms of organic chemical reactions, and stimulate their interest in learning.

The solubility parameter is one of the important criteria for the ability of a solvent to dissolve a polymer. It is used to judge the solubility of a polymer in a solvent. It is of great significance in polymer theory research, coating formulation design, and resin modification. Therefore, how to accurately determine the polymer solubility parameters is particularly important. There are many methods for polymer solubility determination, such as viscosity method, swelling method, turbidity titration method, and estimation method. This experiment uses the most classic turbidity titration method. The method uses chloroform as the solvent to determine the solubility parameters of polystyrene. Because chloroform is a precursor chemical, ethyl acetate with similar solubility parameters is used as the alternative solvent. The experiment proves that the same teaching purpose can still be achieved after replacing the solvent.

The splitting energy of the complex was determined by two methods, employing a colored cobalt (Ⅲ) complex as the carrier, combined with crystal field theory model and spectral analysis. Furthermore, a spectral chemical sequence was established. The impact of diverse ligand fields on the central ions was assessed by comparing the splitting energy obtained through methodologies, elucidating the spectral chemical sequence in terms of metal-ligand interaction. To facilitate learning, we propose an “experiment+theory” approach that enables students to gain better insights into the properties of metal complexes and their interactions with ligands, providing valuable references for integrating theoretical and experimental teaching.

This popular science experiment starts from the perspective of preventing wound infection with antibacterial agents. Silver nitrate and polycaprolactone are used as raw materials to prepare a silver loaded polycaprolactone fiber membranes by using a handheld electrospinning machine. The microstructure is characterized using scanning electron microscopy, and its antibacterial performance is tested. Through a combination of theory and practice, the preparation principle and antibacterial effect of in situ antibacterial fiber membrane are demonstrated. The operation process of this science popularization experiment is easy, the experimental results are easy to understand and involve the intersection of multidisciplinary knowledge, which effectively stimulates students’ learning enthusiasm and expands their horizons.

Experimental report writing is an important component of the experimental courses. At present, the paper report is mainly version of experimental report, this paper used the platform of “Learning APP” and took the electronic inorganic chemistry experiment report as an example, three experiment report templates were designed (constant determination experiment, chemical principle and property experiment, and preparation experiment). On the basis of summarizing the literature and the experience of correcting the report, the paper puts forward some measures to solve the common problems in the process of writing the experimental report. The final scoreofthe experimental report is evaluatedbased on a ratio of 60∶40 between teacher evaluation and student evaluation, and the quantitative evaluation table of experimental report was used as the index of mutual evaluation to ensure scientific, reasonable, objective, and impartial evaluation of experimental reports. Through the learning platform, the evaluation of experimental reports can be timely feedback to students. This paper aims to provide reference for students who are writing experimental reports or teachers who are grading experimental reports, and also lay a solid foundation for students to write scientific papers in the future.

Based on the OBE concept, this paper formulates the training objectives from the needs of the state, the society and the individual, and deeply excavates the ideological and political elements with Yunnan’s characteristics from local characters, social hotspots, scientific frontiers, and culture and history, establishes a “Four-Module+Local Characteristics” database of ideological and political materials, and designs the output-oriented specific teaching cases. As shown by the results, the implementation of ideological and political education with local characteristic based on the OBE concept can get close to students’ lives, effectively improve students’ motivation for independent learning, and realize the synergistic parallelism of knowledge transmission, ability enhancement, and character building.

“Content Representation”(CoRe)is one of the most influential research tools in PCK research field in the last two decades, which is widely used in the representation and development of PCK. Through systematic literature review, this study presents the development background of CoRe, analyzes the connotation of CoRe, and combs the application and improvement of CoRe on this basis. The results show that: Based on Shulman’s original definition of PCK, CoRe makes the amalgam of content and pedagogy concrete and explicit, and essentially constructs the representation framework of PCK; CoRe can not only help to form PCK resource database, clarify the attributes of PCK, characterize the changes of PCK, but also promote the professional development of teachers; The original CoRe has some limitations, but it can be improved based on PCK model and research purpose. A comprehensive understanding of CoRe has significant implications for PCK research and teacher education in China.

Given the problem that the current pharmaceutical analysis experiment course can not meet the demand for comprehensive and applied talent training, a teaching mode based on the combination of CBE and CDIO concepts is proposed. First, modular specialized training based on competency is provided for key job skills, and then taking the project-based comprehensive experiment as the carrier, CDIO mode is adopted to cultivate students’ comprehensive analytical ability in the whole process of pharmaceutical quality control. At the same time, the “three core competency” model is adopted to set experimental teaching objectives, and the experimental course matrix is designed in reverse. Based on the course matrix and relying on the online course platform, a three-level knowledge graph of “knowledge-teaching-learning” is constructed, and a hybrid experimental teaching mode driven by knowledge graph is constructed. The implementation of this teaching mode has achieved good results and provides a reference mode for pharmaceutical analysis experiment teaching.

In view of the current situation of little integration with medicine in general chemistry teaching, weak explicit needs, and insufficient learning motivation of students, the chemical principles are associated with medicine through the creation of relevant medical contexts in six aspects during the teaching process, to stimulate the learning interest of medical students, promote their chemical understanding of medical phenomena, appreciate the scientific outlook embedded in chemistry and its transfer of knowledge in the medical field, improve the effectiveness and quality of learning. It is an effective attempt to integrate medicine and science in the context of the construction of new medicine.

Experiment courses of fingerprint development and extraction that relate to many theories and technologies in chemistry are difficult but important in the experiment teaching system of forensic science. Consciousness, thinking and capability of innovation of the students cannot be well trained in traditional experiment courses, which is not adequate for police universities to cultivate innovative talents. Based on the concept of integrating science and education, electrochemical development of latent fingerprints has been chosen as a case for the design of experiment teaching. Experiment content and implementation process of three experiment teaching stages, including the instruction before class, the practice during class, and the feedback after class, have been optimized and clarified. A new mode of experiment teaching has been constructed from the practical level, providing guidance on the reform of experiment teaching of forensic science.

In this article taking the teaching of the Henderson Hasselbalch equation in the basic theory of biochemistry for example,we reform its teaching content and methods,and deeply explore the application of this equation in various practices and engineering,and try to expand its explanation of practice and application in teaching.The results show that students can better understand and master the equation,effectively consolidate their understanding and mastery of the theoretical knowledge,and improve their ability to apply the equation to think about practical problems and make rational judgments through in-depth and detailed explanation of the practice and application of the equation.

In this work, with the help of a series of computational chemistry analysis methods, a visualization teaching scheme on hydrogen bonding was designed based on several hydrogen bond systems as case studies. This scheme was intended to guide students in operating experiments during class to obtain intuitional data images and use them for evidence reasoning and model cognition of the structural characteristics and functional nature of hydrogen bonds. This aims to enhance students’ understanding and memory of hydrogen bond knowledge, thereby improving their core literacy.

Scanning electrochemical microscopy (SECM) is a microelectrochemical research method that has evolved by combining electrochemical detection technology, ultramicroelectrode technology, and three-dimensional manipulation technology. Its significant advantages lie in its high temporal resolution, spatial resolution, and unique chemical reaction activity resolution. SECM is widely applied in the fields of electrode process dynamics, electrochemical imaging, electrochemical micro/nano manufacturing, electroanalysis, and biochemistry. However, how to analyze experimental data to obtain quantitative and reliable kinetic data for the studied interfacial reactions is not clearly described in many textbooks and teaching processes. This article primarily introduces several commonly used methods for quantitative analysis of kinetic parameters in SECM experiments. Meanwhile, a nonlinear fitting method based on the combined use of COMSOL and MATLAB is proposed, which can rapidly obtain the kinetic constants of reactions, aiming to assist researchers and students engaged in related studies.

In 1897, British chemist Ramsay predicted an element with an atomic weight of 20. In 1898, Ramsay and British chemist Travers found neon in the air, confirming Ramsay’s prediction. After 1920s, the discovery of neon isotope gave people a new understanding of the concept of neon element, and formed the modern concept of neon element. The discovery of the element neon led to the formation of the whole noble-gas element concept, and neon isotopes confirm the existence of non-radioactive isotopes and the universality of isotopic phenomena. The prediction of neon reflects the promotion of scientific discovery by ideal model, scientific hypothesis and other scientific methods. The formation and development of the concept of neon shows the importance of scientific spirit to scientific discovery.

Walter Norman Haworth was the first British organic chemist to win the Nobel Prize in Chemistry (1937) for his pioneering work on carbohydrates and vitamin C, which had a profound impact on carbohydrate chemistry. In addition to elucidating the basic molecular structure of carbohydrates such as monosaccharides, disaccharides and polysaccharides, he also found a ring structure formula which can express all kinds of sugar molecules more accurately, namely the famous “Haworth projection”.On the basis of Albert Szent-Györgyis success in extracting vitamin C, Haworth and his collaborators analyzed its molecular formula, C₆H₈O₆, and pioneered the synthesis of vitamin C. Good at a variety of scientific thinking, excellent chemical analysis ability and chemical method innovation ability, excellent leadership and cooperation ability, and the ability to organically combine the three are the key factors of Haworth’s great scientific success.