Historical approach: chemistry in faces

Authors:

Nechitaylova E.V.. Adress: Tsimlyansk, the Rostov region. Workplace: Lyceum # 1.

Summary

The main purpose of the article is to demonstrate the influence of historical method on educational opportunities for chemical lessons. By the example of the topic “Nitrogen” the article demonstrates how to make a problem situation and how to organize discussion of the problem on the historical facts. It also represents opportunities for intensification of pedagogical aspect of chemical education due to historical facts of science.

Keywords:

The historical approach, history of chemistry.


Methods and Experience Exchange

Reflexive skills: subject matter, content, and building-up technique

Authors:

Marshanova G.L.. Adress: Moscow. Workplace: the Moscow Institute of Open Education.

Summary

The article features a brief analysis of the famous classifications of the general academic skills, the definition of reflection and reflexive skills is given, their content is disclosed, and systematic technique of forming and developing reflexive skills of students while studying chemistry in the secondary school are described.

Keywords:

Techniques of teaching chemistry, the second generation standards, general academic (meta-objective) skills, reflection, reflexive skills.


On using the interactive interrogating and voting system at lessons

Authors:

Antonova E.N.. Adress: Nizhny Novgorod. Workplace: The Nizhegorodsky State Pedagogical University.

Summary

Under the conditions of IT penetrating into all spheres of the social life using informational educational technologies in the school academic process gains a priority meaning. Recently new interactive educational media, such as a multimedia system, interactive boards, and document-cameras, are there to help while conducting academic classes. Besides, new interactive means, such as the interactive interrogating and voting system at lessons, keep emerging.

Keywords:

Interactive poll and vote system.


Developing cognitive activity at the lesson and while at home

Authors:

Kazantsev Yu. N.. Adress: Surgut, Khanty-Mansi autonomous okrug-Yugra, the Tyumen region. Workplace: Grammar school # 4.

Krivenko V. A.. Adress: Surgut, Khanty-Mansi autonomous okrug-Yugra, the Tyumen region. Workplace: Grammar school # 4.

Summary

Stable work while using the system of individual academic tasks positively influences the dynamics of developing individual and personal qualities of a student. The orientation of the academic and pedagogic process on forming and developing individuality determines a character of the individual academic tasks differentiation also. The authors provide examples of individual academic tasks kits on certain subjects.

Keywords:

Cognitive activity, individual academic tasks, differentiated approach, multicomponent tasks.


The lesson with usage of project activity elements

Authors:

Shadrova O.I.. Adress: Moscow. Workplace: Grammar school # 1583.

Summary

It makes sense to organize project activity, when students have already possessed the significant reservoir of knowledge, skills, and experience, which allows them to demonstrate high activity and the certain independence in the course of new material studying. The design of the lesson on the subject of the “Reactions between the electrolyte solutions. Ionic equation of chemical reactions” is offered with the usage of students’ project activity elements.

Keywords:

Ionic equations, route lists, project activity elements, electrolyte.


Module lesson on the subject of “Sulfur. Sulfur oxides”

Authors:

Bondarenko I. I.. Adress: Petropavlovsk. Workplace: the Northern-Kazakhstani State university.

Pflyuk N. Th.. Adress: Petropavlovsk. Workplace: the Northern-Kazakhstani State university.

Summary

The module technology allows each student to reach concrete goals of academic and cognitive activity totally independently. At that academic modules serve as training devices. We offer the design of module “Sulfur. Sulfur oxides” from the academic theme “The Oxygen Subgroup”.

Keywords:

Module training, sulfur, sulfur oxides.


The test on the subject of “Chemical reactions”

Authors:

Gnutova O. A.. Adress: Samara. Workplace: Secondary School # 8.

Summary

To check the effectiveness of the studying the theme of “Chemical reactions” (the 11th Form) the author has developed the bank of the quiz test tasks in the Unified State Examination format. These tasks can be used as a simulator for the general material feedback in the 11th Form and the Unified State Examination preparation, organizing front, group, individual work, and work in pairs.

Keywords:

Tests, сhemical reactions, сhemical balance, speed of chemical reaction, hydrolysis of salts.


Knowledge control using cross-tests

Authors:

Kurdyumova T.N.. Adress: Mocsow. Workplace: Secondary School # 838.

Kurdyumov G.M.. Adress: Mocsow. Workplace: National Research Technological University “MISiS”.

Summary

One of the systematic techniques of the training and knowledge control is the combining chemical equations, which are usually the part of the tasks on different subjects, into the complex of intersectional equations, or a cross-test, which distantly reminds a usual crossword. Examples of such tasks are offered in the article.

Keywords:

Knowledge control, testing, tests, cross-tests.


Saturate monoatomic alcohols: the new material introduction lesson

Authors:

Petrova V.N.. Adress: Sterlitamak. Workplace: Professional Lyceum # 15.

Summary

The lesson is conducted in the lection mode, which is accompanied by a chemical experiment both demonstrational as laboratorial as well. Cross-curriculum links with such academic disciplines as “Biology” and “Medical Knowledge Fundamentals” are carried out.

Keywords:

Alcohols, examining alcohols, spirits.


Chemical tournament

Authors:

Gervich S.R.. Adress: Rostov-on-Don. Workplace: South Federal University.

Bayan E.M.. Adress: Rostov-on-Don. Workplace: South Federal University.

Sazhneva T.V.. Adress: Rostov-on-Don. Workplace: South Federal University.

Metelkina T.A.. Adress: Rostov-on-Don. Workplace: Physics and Mathematics Lyceum № 33.

Summary

A didactic game is a mean, which propels the process of teaching chemistry, and creates conditions to form positive cognitive incentives in teaching chemistry by means of fascinating tasks and contests. The article offers the design of a scoring lesson for the 8th Form on the subjects of “The Atomic Model” and “The Chemical Bond”, which organization includes the elements of situations.

Keywords:

Knowledge control, Grade 8, the atomic structure, chemical bonding, teaching the game.


Our approach to detect coefficients in redox reactions

Authors:

Turchen D.N.. Adress: Voronezh. Workplace: The Voronezh State University.

Summary

The author has succeeded to adapt the algebraic way of equalization of coefficients for being used without application of technical means: the algorithmic instruction was compiled, following which it is possible to get the only mathematic equation with one or two unknowns for the majority of chemical reactions. Its solution allows finding all coefficients.

Keywords:

Oxidation-reduction (redox) reactions, coefficients, algebraic method.


The algebraic way of formulating the chemical equation.

Authors:

Goldfain I.I.. Adress: Moscow.

Summary

It is offered to formulate and solve a system of algebraic equations to get coefficients of a chemical equation. The number of equations is equal to the number of chemical elements, participating in the reaction.

Keywords:

Chemical equation, coefficient.


Consultation

Thermochemistry in school curriculum

Authors:

Postnikov А. Yu.. Adress: Sarov. Workplace: Russian Federal Nuclear Center – All-Russian Research Institute of Experimental Physics, Nizhny Novgorod region.

Summary

The basic thermochemical definitions that are desirable to be known to school students and are necessary for university entrants are presented in the paper.

Keywords:

Thermochemistry, thermodynamics, heat of reaction, enthalpy, Hess law.


Chemical experiment

The application of prognosis in chemical educational experiments

Authors:

Bespalov P. I.. Adress: Moscow. Workplace: the Moscow Institute of Open Education.

Summary

This article’s main topic is educational application of prognosis of substance properties on the basis of its composition and vice versa. Formic acid and sodium formiate were chosen as research objects. The following chemical experiments were performed: oxidation and reduction of formic acid, etherification of formic acid, pyrolisis of sodium formiate.

Keywords:

Forecast, forecasting technique, carboxylic acids, formic (methanoic) acid, acetic (ethanoic) acid.


What is creatine and the ways of its detection

Authors:

Khramov V. A.. Adress: Volgograd. Workplace: the Volgograd State Pedagogical University.

Kolomeitseva A. S.. Adress: Volgograd. Workplace: the Volgograd State Pedagogical University.

Summary

The article offers a simple experiment on qualitative detection of creatine in the meat broths and extracts. Such work is not difficult to accomplish at a usual lesson. The given experiment can perform interest prom the meat produce quality control standpoint. Creating detecting can be also conducted in the other biological liquids as, for instance, saliva and skin washouts are.

Keywords:

Creatine, creatine phosphate, ergogenic.


Improving technique of detecting Calcium and Magnesium in milk

Authors:

Trapeznikova N. N.. Adress: Perm. Workplace: The State D.N. Pryanishnikov Agricultural Academy.

Summary

Calcium and magnesium are biologically active components of the milk which maintenance causes suitability of milk for cheese manufacture. Calcium and magnesium in milk define комплексонометрическим a method, a variant of return titration in the alkaline environment in the presence of indicators мурексида or эриохромового black Т (хромогена). Improvement of a technique of definition of calcium and magnesium in milk will allow to reduce time of carrying out of the analysis, will give economic efficiency and will force manufacturers to use the given technique in the analysis. The given technique will allow to improve quality of let out production.

Keywords:

Calcium, magnesium, milk, a complexon III (Trilon B).


Sharing the experience on organizing the practical work redarding the experimental tasks solving

Authors:

Govorova V.A.. Adress: Moscow. Workplace: Grammar school # 1570.

Chervina V. V.. Adress: Moscow. Workplace: Secondary School # 1388.

Summary

Solving of experimental problems for inorganic compounds recognition' article offers the methodology of laboratory operations which is recommended for the pupils profoundly studying chemistry, preparing for participation to a practical experimental stage of the contest in chemistry. The special attention is given to skills of observing of course of reactions, dependence of process of formation of resultants of a pouring reagents order, to ability of making correct conclusions from what has been seen and to form up a work done.

Keywords:

Practical work, experimental task solving, salt hydrolysis, ionic replacement reactions, the practical experimental stage of the chemistry academic competition.


Some Facts from History of Chemistry

The major achievements and awards of women-chemists

Authors:

Rogozhnikov S. I.. Adress: Perm. Workplace: The Perm State National Research University.

Summary

The major achievements of women in chemistry are summarized in article. The paper contains information about the women who opened chemical elements, women-chemists and biochemists – who were Nobel prize winners, the women-chemists got state (Lenin's award, the state award, a national scientific medal of the USA) and scientific (Priestley, Gibbs, Perkin) awards. The list of women- presidents of the American chemical society, women-chemists entered into the Hall of National Fame and the Hall of Fame of women-inventors of the USA are presented. About women who were the first among women in different areas of chemistry studying are told.

Keywords:

The woman-chemists, achievements of women in chemistry, women - chemists and biochemists – Nobel prize winners, the state and scientific awards of women-chemists.


Post-Curriculum exercises

On the experience of cooperation of school and museum

Authors:

Shakirova N.S.. Adress: Moscow. Workplace: The Polytechnic museum.

Voinova I.Yu.. Adress: Moscow. Workplace: Secondary school №1344.

Chernobelskaya G.M.. Adress: Moscow. Workplace: Moscow Pedagogical State University.

Summary

The paper considers the experience of cooperation of the Moscow school №1344 specialized in biology and chemistry and the research educational laboratory "Chemistry" of the Polytechnic museum. It is an example of a joint organization of the propedeutic stage of teaching chemistry which proves to be effective. Methods, content and tools of teaching the propedeutic chemistry course for the 6-year scholars are described. This course is based on the integration of school and museum classes.

Keywords:

Cooperation of school and museum, propedeutic stage of teaching chemistry, the Polytechnic museum.