2012 № 10

The member of the inter-subject jury of the All-Russian “Teacher of the Year” Contest shares one’s impressions about contest “Teacher of the Year-2012”.

The article is sanctified to the study of question of the state of water in the molecules of crystallohydrates of salts. The modern going is considered near the study of chemistry of complex salts of crystallohydrates. The structure of simple and double inorganic salts is considered, vitriols and alumens both in water solutions and in the crystalline state.

The Nobel Prize in Chemistry 2012 has been awarded to the American scholars Robert J. Lefkowitz and Brian K. Kobilka for work on cell receptors, as the Nobel Committee for Chemistry 2012 of the Royal Swedish Academy of Sciences announced. The American scientists have been awarded by the precious prize for comprehension of the mechanism of interaction of adrenaline receptors with G-proteins.

The article will describe modern requirements and principles of chemistry education formation. This information will be useful for teacher in the process of putting together working program and choosing study books (guide).

For schoolchildren with different neurodynamic peculiarities of the nervous system individual styles of academic and cognitive activity are typical. On the Ye. P. Ilyin’s tapping-test “Determining characteristics of the nervous system of students by the psycomotor indices” basis the authors have conducted research in a student’s group, and then developed the methodical system of ways and techniques of pedagogical support of the individual style of the academic and cognitive activity of students.

In this article the description of lesson methodology “Hydrolysis of inorganic and organic substances” is introduced. The suggested methods are directed at formation of the most important competences as of defining interrelation between substance structure and its attributes (chemical reactions in which it is involved), of producing chemical reactions in form of ion and molecular equations proving the reaction of solutions. In the article the results of testing effectiveness of the methodology in Tattinskaya gymnasium are adduced.

There are certain difficulties in solving problems, in which the condition is changing the mass of the dissolved substance and solvent in the solution, and when it is changed again and the way of expression of the concentration. The problem is simplified by using a certain algorithm of the solution of the tasks of this типа.Алгоритм solution the estimated problem is to write the necessary number of independent algebraic equations connecting the well-known and unknown parameters, and the solution of the obtained system of equations.

For the students of the 10th chemical and biological Form I’ve developed a subject-focused elective course “Solving chemistry tasks of the advanced difficulty level”. Attending this course classes allows student of senior classes to feedback, systematize, and further develop the chemistry knowledge, to master main approaches to solve non-standard qualitative and quantitative tasks on organic and inorganic chemistry, develops their thinking. Mastering strong knowledge within the framework of chemical education, the most important computations skills, algorithms of typical tasks solving, encourages successful work within the given course framework. Besides, chemical intuition and power of observation are needed. Their clear arrangement and structuring in accordance with general types and ways of their solving is important to teach how to solve tasks, which call the major difficulties students encounter.

School-leavers effortlessly solve tasks, coming from the calculating mass content of the dissolved substance or the mass of the dissolved substance in the solution, but encounter difficulties when solving tasks on calculating the mass of the substance, taken for the reaction with the purpose of decreasing or increasing the reaction product concentration. The author offers tasks of a such type and the way of their solving.

The XXIInd international conference on chemical education took place in Rome from the 15th to the 20th of July. The author recounts the modern western ideas and challenges in the sphere of modern chemical education, sounded at the conference, transforming those, wherever it is possible, into the Russian discourse.

Developed by the authors new problem and developing experiments on the copper salts (II) and metals of different activity interaction are taken as a basis. Problem situations, which have been created with the help of offered experiments, must be solved by students directed by a teacher on the basis of the theoretical analysis of the experiments observed. The given experiments will help teachers to develop a theme more deeply, to explain the copper salts (II) and metals interaction characteristics, to arouse students’ interest in chemical science, and to enlarge their scope.

The given study has been held by students during post-curriculum class on IT integrated with chemistry. The students have paid attention to the fact that it was interesting for them to study ink. With that purpose they have perused ink indicative properties. While carrying out experiments, they took photos of the obtained results.

The story about communication between term “force” and alchemy interest by Sir Isaac Newton is given.

Within the chemistry week framework for the 9th Form students the author conducts a game “The chemical kaleidoscope”. Two teams participate in the game, which consists of several contests.

The article is about Champaign, a traditional drink of celebrations. Its composition and properties are discussed, some advice on choose the right brand as well as keeping and drinking Champaign is given. The student research project based on the investigation of Champaign is overviewed.

The index of articles, published in the magazine in 2012, has been provided.