For the prosperity of chemistry, in despite of circumstances

Authors:

Kostenchuk I.A.. Adress: Moscow.

Belyakova I. V.. Adress: Moscow. Workplace: Research and training laboratory “Khimiya (Chemistry)», Polytechnic museum.

Larionova G. S.. Adress: Moscow. Workplace: Research and training laboratory “Khimiya (Chemistry)», Polytechnic museum.

Summary

The last month of the past school year gave us a buzz by two convincing optimism events. On the background of the shrinking number of academic hours to study chemistry invitations to the presentation of a children’s chemical studio, which took place at the Polytechnic museum, and to the regular Moscow research and practice conference of chemistry teachers, just beginners, “A Step towards the Pedagogical Mastership”, were accepted as an encouraging sign.

Keywords:

Chemistry, the Polytechnic museum, young teachers conference.


And what does the law say?..

Authors:

Khmel’kov S. B.. Adress: Moscow. Workplace: Associate Head of the Legal Department of the Administration of the All-Russian Trade Union of the Education.

Summary

Associate Head of the Legal Department of the Administration of the All-Russian Trade Union of the Education is answering our readers’ questions.


On the occasion of the 100th anniversary of G.P. Khomchenko

Authors:

Berdonosov S.S..

Summary

It is 100 years since the birthday of G.P. Khomchenko, the author of widely known chemistry textbook for entering niversities.

Keywords:

G p khomchenko.


Consultation

About the mechanism of formation of a chemical bond

Authors:

Ratkevich E.Yu.. Adress: Moscow. Workplace: The Moscow state regional university.

Bazaeva M.G.. Adress: Moscow. Workplace: The Moscow state regional university.

Golubeva R.N.. Adress: Moscow. Workplace: The Moscow state regional university.

Mansurov G.N.. Adress: Moscow. Workplace: The Moscow state regional university.

Summary

In spite of the fact that modern representations about a chemical bond are based exclusively on theories of quantum mechanics, till now in chemistry textbooks D.Ljuisa and V.Kosselja's based on formation of a steady eight-electronic cover the out-of-date theory, and also out-of-date conception of metal bond from positions so-called «electronic gas» is used.

Keywords:

Octet theory, chemical bond, cyclization mechanism, covalent link[age], metallic bond, electrostatic bond, polar bond, crystal, electrical eelctronegativity.


In memoriam of Yelena Alexandrovna Kosareva

Authors:

Levina L.S.. Adress: Moscow.

Summary

Ye.A. Kosyreva, who had been working for many years an editor-in-chief of magazine “Chemistry at School”, passed away.

Keywords:

Ye, A, Kosyreva.


Methods and Experience Exchange

Using technologies of creative thinking development at the chemistry lessons

Authors:

Nechitailova Ye.V.. Adress: Tsimlyansk.

Summary

Studying chemistry provides wide opportunities and means to form key competences of students, that’ is why the critical thinking development in the chemistry studying process is an important aspect of the teacher’s activity. But while using methods of critical thinking development theory (CTDT) it is necessary to consider the specifics of the subject, adapting those methods for working with matters formulas of matters, and the chemical equations. The author examines ways of using CTDT in the process of teaching chemistry.

Keywords:

Critical thinking, teaching chemistry, pedagogical strategy, analyze facts, generate ideas, defend opinion, make comparisons, draw inferences, solve problems.


Metaphors in teaching chemistry: pros and cons

Authors:

Akhmetov M.A.. Adress: Ulyanovsk. Workplace: the Institute of Advanced Training of Employees of Educational Sphere.

Summary

Metaphors can be powerful teaching tools because they can make new material intelligible to students, but metaphors have other side of the coin. The object of this paper is to show problem of using metaphors for chemistry training, to discuss the pros and cons of this problem.

Keywords:

Teaching chemistry, metaphors and analogies.


Using analogies in teaching process

Authors:

Mirenkova Ye.V.. Adress: Smolensk. Workplace: The Smolensk State University.

Summary

Using the method of analogies in the teaching process has bee characterized and examples of using analogies at chemistry lessons are offered.

Keywords:

Analogy, teaching, chemistry and life objects.


Experience of using techniques of pedagogic schools

Authors:

Marshanova G.L.. Adress: Moscow. Workplace: Grammar School # 1596.

Afanasieva T.N.. Adress: Moscow. Workplace: Grammar School # 1596.

Summary

Тhe article presents a scenario of a combined physics and chemistry lesson on the topic of “Structure of an atom” with using a technique (trend) of pedagogic school, that lets implementation of an active approach to practise of teaching natural science at a secondary school.

Keywords:

An active approach to teaching chemistry, pedagogic school, a structure of an atom, combined lessons.


The role and place of design at lessons

Authors:

Chepurnykh D.N.. Adress: the town of Belovo, the Kemerovo Region. Workplace: Secondary school №26.

Summary

The students, who work with a construction kits, keep in mind and reproduce organic matter formulas quickly, master the chemical nomenclature well, and compose structural formulas independently as contrasted with students of those classes, where the construction sets were of no use while teaching.

Keywords:

Constructing process, atom and molecule models.


Creative tasks solving as the way of negotiating the thinking stereotypes

Authors:

Denisova A. V.. Adress: Moscow. Workplace: The Moscow Institute of Open Education.

Orzekovsky P.A.. Adress: Moscow. Workplace: The Moscow Institute of Open Education.

Summary

In this article one of causes of students’ low conscious knowledge in the area of organic chemistry is discussed. As a cause forming of stereotypes of thinking during any educational activity is examined. In the article samples are given of stereotypes of thinking which could be formed in studying of organic chemistry, as well as opportunities to re-think these stereotypes through creative activity of students are shown. Teaching students to independently re-think these stereotypes is considered as main term to increase consciousness of knowledge in the area of organic chemistry.

Keywords:

Stereotypes of thinking, consciousness of students’ knowledge, creative experimental tasks, reflection, re-thinking.


An integrated lesson on the subject of “Proteins as the living base”

Authors:

Yatsyna O.A.. Adress: Yegoryevsk, the Moscow region. Workplace: Secondary school №15.

Summary

The given chemistry lesson is conducted in the 10th or the 11th Form. In the course of generalization and systematization of knowledge about proteins the new material is learned (classification of aminoacids and proteins, renaturation, the functions of protein molecules are examined). While studying denaturaion, a chemical experiment is carried out to realize inter-subject links, and for development of the cognitive interest of students. The close link of the perused material with life (eutrophy, a healthy lifestyle – dry propaganda) is shown.

Keywords:

Protein, life, polycondensation, denaturation, renaturation, amino acids, polypeptides, polymer.


On the content of the lesson on the subject of ”Carbonates”

Authors:

Dmitrieva I.N.. Adress: Pskov. Workplace: Multi-discipline law lyceum # 8.

Summary

A great number of different matters surround us. A good half of them is related to inorganic ones, such as: oxides, acids, and salts. More often than not we encounter carbonates in the nature.

Keywords:

Carbon acid salts.


Sharing the experience of studying the halogen subgroup

Authors:

Popova N. A.. Adress: The rural community of the Golden valley, the Primorsky Region.

Summary

The lesson of the new material introduction on the subject of “Halogen subgroup” is conducted by the author in the way oа an independent investigation, in which five student groups participate, such as follows: chemists, physicists, biologists, geologists, and historians.

Keywords:

Halogens, lesson-investigation.


Technologies of getting valedictorians ready for the USE (Unified State Examination)

Authors:

Matveeva E.F.. Adress: Astrakhan. Workplace: The Astrakhan State University.

Summary

The article offers technology training students to Single State Exam (SSE) by the example of their training in secondary school, organized by the Department of Chemistry, Astrakhan State University. The technology based on the principles: maximize the use of source of resources recommended by Federal Institute of Pedagogical Measurements (FIPM), paired learning, full of self-control and feedback. The greatest attention is paid to the organization of training and automonitoring.

Keywords:

Preparing to single state exam (sse), pair learning, self-study, self-control, training of students.


Test tasks on the subject of “The Chemical Bond”

Authors:

Zhukova N.I.. Adress: Ussuriisk. Workplace: The Pedagogical Institute.

Potenko Ye.I.. Adress: Ussuriisk. Workplace: The Pedagogical Institute.

Summary

Theme test tasks with answers are offered.

Keywords:

Test tasks, chemical bond.


Chemical experiment

Oscillating reactions: amazing, curious, interesting

Authors:

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

Summary

The new technique of carrying out of oscillatory reaction is developed. As an organic reducer acid is used sulphosalicylic. Methods of reception of the substances necessary for carrying out of reaction are resulted.

Keywords:

Oscillatory reactions, sulphosalicylic acid, potassium bromate, 1, 10-phenanthroline.


Problem experiments on acidulous salt solutions

Authors:

Surin Yu.V.. Adress: Moscow. Workplace: The Moscow State Regional University.

Summary

Possibilities of using modes of problem teaching chemistry in the 9th and 11th Forms of a secondary school are shown in the work. New school chemical tests on some acidulous salt solutions, developed by the author, are taken as a basis of this mode. Problem situations, which are created with the help of the offered experiments, must find their solution under the leadership of a teacher on the basis of a theoretical analysis of what being observed. The active research activity of students while accomplishing problem tasks with acidulous salt solutions of phosphoric acid and carbonic acid is creative. Students learn to apply the knowledge they have acquired to the new unfamiliar situations.

Keywords:

Problematic chemical experiment, problem theoretical analysis, new experiments on acid salts solutions, chemical properties features of hydrogen phosphates, potassium, potassium hydrogen carbonate.


Investigation of combustion of butane and air mixtures

Authors:

Zhilin D.M.. Adress: Moscow. Workplace: Secondary school №192.

Summary

Laboratory experiment to establish butane:air ratio necessary for burning their mixture is described. The mixture is prepared by excluding a certain amount of water from a plastic bottle. Butane for lighter is used for the experiment. It is turned out, that the mixture burns when the ratio is 1.5 times or less different than stoichiometric. Safety issues and typical mistakes are also discussed.

Keywords:

Air, butane (diethyl), butane-air gas, combustion of butane-air gas.


CHEMICAL EXPERIMENTS WITH ENZYMES AND HIBISCUS TEA

Authors:

Yakovishin L. A.. Adress: Sevastopol. Workplace: National Technical University.

Summary

In this paper the methods of chemical experiments with enzymes of acidin-pepsin tablets and kiwi are described. The properties of anthocyans and acids of hibiscus tea are considered.

Keywords:

Chemical experiments, proteins, enzymes, acidin-pepsin, kiwi, hibiscus tea, anthocyans.


Some Facts from History of Chemistry

We recollect them with gratitude

Authors:

Razhabov H.. Adress: Urgench, Uzbekistan. Workplace: the University.

Summary

One of the major principles of teaching, which is the principle of historicism, assumes providing students with the information regarding the heroic labor of scholars-researchers. It is evident, that studying their scientific and creative heritage, which possessing the great educational potential, promotes the career choice, the right determination of the way of independent life for youth.

Keywords:

History of chemistryмии, scholars’ activity, the outstanding Russian organic chemists.


About «green fingers» and «butterfly’s wings»

Authors:

Izyumov I. A.. Adress: Aksay, the Rostov region. Workplace: Secondary school №3.

Summary

Early quantum atomic models by J. Nicholson and N. Bohr are describes.

Keywords:

J nicholson, N Bohr, planet atom.


Post-Curriculum exercises

Development and conduction of game “What? Where? When?”

Authors:

Penkova G.A.. Adress: Zelenograd, Moscow. Workplace: Secondary school № 618.

Summary

Questions for the 10th and 11th Form students are offered.

Keywords:

Game, chemistry post-curriculum exercises.


Knowledge parade

Authors:

Ledeneva T.D.. Adress: Tatarsky District, Novosibirskaya Oblast (Region). Workplace: Pervomaiskaya Secondary School.

Summary

Four 9th Form student teams take part in the knowledge parade, such as follows: “Alkalis”, “Acids”, “Oxides”, and “Salts”. The school administration, teachers, parents, and students and the jury, which consists of the 11th Form students, attend the lesson.

Keywords:

Acids, salts, alkalis, oxides, competition (contest).