2012 № 9

The author reflects on its understanding of a teacher profession in the modern society

The given research is a try to develop a method and to determine the upper limit on the basis of the structure of the Periodic system obtained by D. I. Mendeleev and developed further on by J. Rydberg and Ye. V. Biron.

Learning activity of students is the actual problem of education in Russia. The article contains the seven rules, which chemistry teachers would use for improving of students’ learning activity for teaching success.

Organization of project-research activity of students of humanity specialization helps to develop cognitive process of students, their self-realization, and accumulation of their own experience. When selecting subjects for research projects for students of humanity specialization, it is necessary to consider approach of integration of chemistry and literature, art, history and everyday life.

In article methodical approaches to studying of the section «Initial data on organic substances» through a prism of ordering of a material of a course 8-9 of a class and possibility of preparation for performance of GIA tasks, and also course propaedeutics of the organic chemistry studied in the 10th class are offered

The design of one of the lessons from section “Organic compounds” for the 9th Form is offered. Critical thinking development technology is used at the lesson.

The article offers a variant of a test on the theme of “The main ideas about organic matters” in the 9th Form.

Examples of compounding equations of redox reactions for different classes of organic matters in accordance with the traditional sequence of organic chemistry material study in the secondary school are examined.

The author proposes the development of the lesson of chemistry with the use of a block of problematic situations for the theme “polymers”, applies didactic material to the lesson, recommendations regarding the organization of the group form of the work of students and the use of electronic presentation.

Students come to know, that due to hydrolysis the salt solution can feature acidic-type, neutral, or alkaline environment; they compound ionic equations and accomplish test tasks. During two lessons students carry out experiments, compounds salt hydrolysis equations and come to know how to shift the balance of this reversible process.

Is a short educational texts and tasks in the test form, on the theme «General scientific principles of chemical production», «Industrial methods of producing substances» (on the example of the production of sulfuric acid, ammonia, nitric acid and and iron).

Article is devoted to the description of algorithms of the solution of settlement tasks on a mix. Three types of tasks and ways of their decision are presented.

It is shown that in order to meet the challenges facing modern school, designated in federal State educational standard for basic general education, it is necessary to strengthen the role of chemical experiment as the principal method of scientific knowledge, to defer its illustrative function accents on heuristic and research. In accordance with the approaches proposed technique for chemical experiments under the topic "The initial chemical concepts".

Landoldt's vessel as an equipment for gas obtaining is described. The solid reacatant is added to one appendix of the vessel and the liquid – to the other. Than the vessel is plugged by a stopper with a gas relief tube. To start the reaction the liquid reactant is poured to the solid. To stop the reaction the liquid is poured out from the solid to the other appendix. The instructional materials for some experiments with hydrogen are attached.

Opportunities of applying methods of problem chemistry teaching in the 9th, 11th Forms of secondary school have been shown. New school chemical experiments on salt solutions, which are subject to hydrolysis, developed by the author are taken as a basis of these methods. Problem situations, which are made up with the help of suggested experiments, must be solved by students directed by a teacher on the basis of theoretical analysis of experiments observed. The experiments are developed purposely to implement practically the basic ideas of the problem teaching theory.

This article deals with the period of childhood and sholarship of Great Scientist D. Mendeleev. Author describes historical enviroment in wich young Mendeleev brought up and learned.

The problem of cognitive activity of pupils is one of the central problems in pedagogy as the success of the training activities depends on the formation of a continuous and sustained interest in the teachings of the early stages of learning. We have developed and approved in the further education pupils of the course "Chemistry in the Science Center" for pupils of 5-7 classes, which directed at the development of cognitive activity of schoolchildren by means of the subject "Chemistry" and information and communication technologies, and, consequently, the creating favorable conditions for the formation of interest in chemistry, an understanding of its role in professional self-determination. The article describes a method of conducting a lesson using ICT for pupils of 5 classes on subject matter «Methods of separating mixtures»

The competition and scientific results of the 44th International Chemistry Olympiad (Washington, July 2012) are considered. The selected theoretical and experimental problems and their solutions are analyzed.