2013 № 6

The author in the article pays a great deal of attention to the role chemistry plays in the profession chosen. Chemistry influences all spheres of the human being activity, and specially the profession of chef to the great extent.

Russian Federation takes the first place in the extraction and reserves of natural gas in the world. The major part of it is exported or burnt down for heat and electricity production. In the article reference directions in chemical processing of natural gas with the application of fundamentally new native technologies are described. These technologies will open new possibilities for the gradual transfer from the export of raw material to the export of deep processing products. In Russia such technologies may become a strong incentive for the development of native economy.

The author examines three levels of cognitive activity of school children and illustrates different levels of cognitive activity of students with the help of the examples from the 8th Form chemistry course.

In article the analysis of the normative documents defining the content of chemical education within the declared problem is given, and also possibilities of chemistry lessons formation at student’s correct relation to a health and health-saving problem.

The article surveys the experience of using electronic educational resources by the teacher of Chemistry; presents the plan-summary of a lesson on the topic “Reactions of decomposition”.

Using historical materials at a lesson and during post-lesson time demands using pedagogical and information technology and scientific organization of independent work of students. Technology of joint training is an effective pedagogical technology, which allows teaching organic chemistry using historical materials. Successful introduction of joint training technology is connected with regular mental activity of each student, with complete and qualitative accomplishment of homework, with mastering academic material, and with teamwork.

The main purpose of the given optional course (bus) is extending and systematizing students’ knowledge on structural and logical mutual transformation of organic compounds on the chemical experiment basis.

Systematic usage of problems and search methods at lessons allows reaching the high level of development of reflective skills of students. Thus, students can formulate implications and draw conclusions already in the course of organic chemistry, when studying a new topic, starting already with theme “Alkines”. The author examines a lesson on the subject of “Carboxylic acids” (the 10th Form) as an example.

The authors revealed the methodology of studying the original classification oxides, a method of training the compilation of equations of the reactions of substances interaction belonging to different classes is described. The typical examples of the system of different levels of cognitive tasks are given.

It is not about one particular lesson, but the teacher's work focused on the understanding of students first chemical process, as described, and then calculate the number of ways of substances and their ratio in the chemical reaction, work with mathematical formulas to find the mass and volume of substances and mixtures from the known value of substances. And if in the result, students themselves can think up a task, write the text, offer a solution, and it is mean that teacher’ s made on five and the student has mastered the skills of reflection as a cognitive awareness of performed actions and thought processes, their results and the grounds of knowledge and the boundaries of their ignorance, new cognitive tasks, and means to achieve them.

The article material will assist a teacher to compile a great number of different tasks on determining alkane formula based on element mass fraction known and on combustion products known, using chart data. Meanwhile it is possible to vary the difficulty level independently, only changing the data quantity, e.s. to get student ready to solve tasks both on the basic level as on the profile level as well.

n this Article considered some questions of stoichiometry as a system of laws, principles and terms, which lay grounds for calculations of the substance’s composition and quantitative relations between the substances in chemical reactions. It is accentuated that it is not advisable to add the equations of independent reactions and reversible consecutive reactions. Little-known facts about negative value of stoichiometric numbers of initial substances in the reaction equation are present as secrets of stoichiometry. The conception of the extent of the reaction which is in some sources is inconsistently called “the degree of completeness” are also considered in this article. In the oxidation-reduction reaction which depends on the acidity, the reagent may have two different equivalents. It is illustrated by the example of the potassium dichromate.

Offers a selection of the experiments that can be held with students of ninth classes during the elective course in chemistry.

Available chlorine bleach contains sodium hypochlorite. It can be used to obtain the necessary reagents, diversify the school chemical experiment and practical training study.

Offers a selection of the experiments that can be held with students of ninth classes during the elective course in chemistry.

This article presents methodical recommendations on the methods of purification and separation of substances. The features of the proposed approach to the organization of cognitive activity of students in the study of the subject is the widespread use of laboratory chemical experiment, the implementation of an individual approach to the development of students as well as the use of digital learning resources in the classroom, allowing into account the peculiarities of a small school.

The project method provides great opportunities to teaches to change traditional approaches to content, modes, and ways of academic activity, bringing the entire system of organizing an academic process on the new qualitative level.

The high scientific and pedagogical potential of MKhO named after D.I. Mendeleev allows not only conducting propaganda and educational activity with student of the 8-11th forms, but training teachers as well. And such work has been already conducted: “The innovative program of the initial chemical and ecological education of students” has been developed. It is assumed to organize excursions of students to universities of the Russian Academy of Sciences, and other scientific centers.

The author traces events, which happened in the D.I. Mendeleev’s life in the last year of his stay at the Saint-Petersburg University.