2017 № 5

One of the main tasks of the teacher is to think over educational process so that students should be interested in studying chemistry. The training material is perceived better due to the use of entertaining elements.

We investigated compounds of metal ions with organic ligands in terms of acid and bases electronic theory. Chelate complexes as well as complexes with crown-ethers and cryptands are described.

The research demonstrates the importance of goal-setting by students in their educational activities. The search of ways for approaching the challenge can be regarded as a positive tendency in the training methodology for chemistry. The article considers the conditions under which school students acquire personal values of cognition and provides examples respectively.

The article considers possible approaches to renewal of the chemistry course content. The article highlights conceptual approaches to the renewal of the content of chemistry education in school as well as to the structure of courses in 8-11 grades.

The article touches upon the problem of a lack of time in studying chemistry at a basic level in grades 10-11. The version of the joint construction of courses of chemistry and biology with the distribution of the corresponding chemical experiment that allows teachers to allocate time for a more detailed study of complex issues of chemistry is considered.

The lesson “Comparison of Physical Properties of Carbonic Acids and Esters” is offered. In this class it is important to explain some physical properties of carbonic acids and esters from the point of view of structures of their molecules, i.e. to define influence of functional groups on physical properties of compounds.

The scenario of a lesson of studying new material on the topic “Many faces of carbon” (9th grade) is offered. The technology of development of critical thinking through reading and writing is used. One of the main objectives of this technology is to teach school students to think, analyze, structure and transfer independently obtained information.

The lesson is organized as an investigation performed by the students, directed by the teacher. Elements of entertainment, development of imagery and associative thinking as well as formation of experimental skills of the students are intended to arouse and maintain students’ interest.

The use of training simulators is convenient for the development of basic abilities. They can be created, for example in the PowerPoint program in the form of presentation simulators with the hidden hints. The possibility of creating testing tasks with feedback in the PowerPoint program is discussed in the paper.

This article focuses on the role of school chemical experiment in theory and practice of teaching chemistry. The chemical experiments practice at secondary school is critically reviewed. The authors describe three directions in development of school chemical experiment: using experiments as an initial source of knowledge; applying experiments for verifying the truth or falsity of a hypothesis; designing programs of students’ activities during chemical demonstrations for remembering and understanding it.

The article presents the experience of developing chemical models of the national flags of Russia and Tatarstan. Theoretical basis and methodology for producing multilayer colored liquids are discussed. Chemical modeling of flags is seen as a new form of live work on civil-patriotic education of schoolchildren in extracurricular actinities.

The authors offer the scenario of the integrated extracurricular activity showing the beauty of nature by means of music, poetry, art, chemical demonstrations.

The practice-focused project for school students devoted to the comparison of different types of tea is offered. The results of organoleptic investigation, experimental determination of caffeine, tannin, vitamin C and influence of acids and alkalis on tea coloring are presented.

The scenario of the students’ conference devoted to chocolate is offered. The authors provide interesting information on history of discovery and application, classification, nutrition value, chemical composition of chocolate, its impact on a human body. The experimental techniques of definition of some properties of chocolate are described.

The article presents the history of the discovery of the chemical element ruthenium by Karl Klaus the chemical laboratory of Kazan University. The importance of this discovery for the global chemical science and industry is described.