Crystal-field-induced magnetic anisotropy and necessary mathematical derivation are discussed in detail, including the relationship among crystal field, the annihilation of orbital magnetic moment and magnetic anisotropy, and the determination of crystal field parameters from magnetic property measurements and spectrum data.

In order to adapt well to the reform requirements of basic education of nowadays, and to cultivate excellent normal talents, it is very necessary and important to carry out the teaching practice of inquiry learning in normal universities. In this article, the feasibility, the process and the mode of inquiry learning in the course of green chemistry in Inner Mongolia normal university were discussed, and the teaching effects were evaluated and analyzed.

Electrophilic addition is a typical reaction for alkenes which is important in undergraduate teaching and requires students to master skillfully. Several theories are involved in the reaction including reactive activity, regionselectivity, stereoselectivity and so on. However, in most textbooks, some of the discussions concerned with the stereoselectivity of electrophilic addition reactions of alkenes are not thorough enough to make the students understand,so that in this article, a systematic discussion was introduced, which would help students to comprehend this knowledge point.

The key and difficult points of physical chemistry may be the calculation of reaction enthalpy. Reaction enthalpy, formation enthalpy and combustion enthalpy often make the beginners confused in the calculation process. By designing energy level diagrams, including reaction enthalpy, formation enthalpy, combustion enthalpy and so on, it was discovered that those diagrams were helpful to simplify the calculation process and to clearly make a distinction about different enthalpies above-mentioned.

Aimed at the accuracy in determining the content of bentonite in drilling fluid by methylene blue method in the course of "basic experiments of oilfield chemistry", this experiment was improved by analyzing influence factors and optimizing conditions. Then the modified method was used in basic experiments teaching, open experiments and scientific research. Effects were gained in cultivating practical ability, innovative ability, spirit of seeking truth and engineering consciousness of undergraduates majored in petroleum engineering, assisting scientific research and directing site operation.

A feasible comprehensive experiment was designed in this article to investigate the catalytic decomposition of hydrogen peroxide in a heterogeneous system using ferrihydrite as a catalyst. The activation energy, activation enthalpy and activation entropy of the decomposition reaction of hydrogen peroxide could be obtained through determining the rate constants at different temperatures, which makes students acquire some knowledge on the catalysis in heterogeneous system. In the experimental process, not only the experimental conditions can be selected by students, but also other iron oxides such as α-Fe₂O₃, α-FeOOH and γ-FeOOH are also used as catalysts to investigate the effect of crystal structure and crystallinity of iron oxides on their catalytic efficiency. The exploratory experiment design is favorable for students to develop their innovative ability, integrated experimental skill and scientific research ability.

Distillation, fractional distillation and infrared spectroscopy are basic experimental techniques of organic chemistry experiment. Meanwhile, structure determination of unknown materials is a logical reasoning process by comprehensive utilization of unknown materials' properties and scientific analysis. Students' abilities of integrated utilization of experimental techniques, scientific analysis of experimental results, reasonable structure determination of unknown materials can be cultivated by experimental techniques with examples of separation and identification of unknown components of wine flavors.

In chemical engineering principle experiment, fluid flow comprehensive experiment includes the determination of centrifugal pump characteristic curve, calibration of flowmeter, etc. The experiment of relation between flow rate and power frequency was developed by latest technology of frequency conversion to make up the deficiency of frequency conversion and energy saving in current textbook, which can improve students' active learning ability, cultivate students' engineering quality and develop their comprehensive competences.

Problems presently existed in teaching methods, teaching contents and evaluation methods of organic chemistry experiment teaching in local undergraduate colleges were analyzed, and several teaching methods of organic chemistry experiment were explored according to local colleges' conditions and students' qualities.

The traditional teaching method of basic chemistry experiment is changed. The new teaching method of property and preparation of inorganic compounds is explored in a way of scientific research. In experimental process, the practical ability and creative consciousness of the students are cultivated.

Based on the GRAPA evaluation method and the characteristics of design experiments, we set up teaching standards of design experiment in chemistry didactics, built evaluation scales for teachers and students, and carried out the practice research. The research results showed that the GRAPA evaluation method had both functions of formative and summative assessment, which could promote the communications and interactions between teachers and students, improve the students' learning interest, experimental innovation consciousness and self-monitoring ability.

The experiment teaching ability is an important symbol of chemistry teachers' professional development. For pre-service chemistry teachers, explaining and thinking are important abilities in chemistry experiment teaching, and the exploring ability is the core. Experiment teaching ability can be achieved in processes of observation, practice and reflection. Experiment teaching, giving lectures, teaching competition, instructional probation and teaching practice are valid paths to form experiment teaching abilities for pre-service chemistry teachers.

A novel experiment teaching system of food biochemistry including basic experiment, comprehensive experiment and design experiment was constructed. Some methods about how to deal with the relationship between theory and practice, this course and subsequent courses, inside and outside of class room, teaching and scientific research were introduced with analysis of tipical teaching cases.

Chemistry curriculum is required for students major in pharmaceutical engineering. In chemistry teaching,problems include overlap of some theoretical contents, isolation of different experimental courses, more contents with less teaching hours, laggard teaching mode and old evaluation system. Exploration and practice on chemistry curriculum reform of pharmaceutical engineering specialty in Linyi university was introduced in this article, including integrating and optimizing theoretical and experimental courses, setting chemical comprehensive experiments and innovative experiments, improving teaching methods and constructing creative classroom, promoting reform of examination and evaluation systems.

This article analyzed the problems of thesis writing of education master from aspects of research purpose, theoretical foundation, core contents, case analysis, and conclusion of research and so on, and gave some proposals.

With examples of Cambridge structural database system and related 3D visualization software, this article introduces the heteroatom chiral, axial chiral, planar chiral, helical chiral, supramolecular chiral compounds without chiral carbon atom and their absolute configuration to deepen understanding of concept of chirality.

The rule of stoichiometric number ratio is unfavorable to the implementation of SI stipulation about amount of substance, inconsistent with equivalent law, unable to indicate property of reaction and to express water hardness, alkalinity, resin exchange capacity and electrolysis law, and has more complex calculation. However, the rule of equal amount of substance can inherit and develop equivalent law and make the calculation of titration simple.

Physical quantities in the equation of components were demonstrated and examples were given to illustrate the calculation of the number of components. The effects of chemical equilibrium and complete reaction to components in a system were also discussed,including that chemical equilibrium would not affect the number of components if the products of a chemical equilibrium were same phase, and complete reactions could be treated as chemical equilibrium without consuming multiple reactants. Finally, the steps for determining the number of components of a system were summarized.