Methods and Experience Exchange

Technologies of wartime

Authors:

Bobrinev Y u. V.. Adress: Moscow. Workplace: Secondary school № 1514.

Summary

The Great Patriotic War brought our people suffering and grief but also led to creating new technologies in medicine, energy, aircraft engineering, etc. Technological advances which saved thousands of lives during a period of severe trials are still in use.

Keywords:

Great patriotic war, blockade of Leningrad, means of fire protection, protective barriers.


Methods and Experience Exchange

The development of critical thinking by means of the method of hexagonal learning

Authors:

Selezova E. V.. Adress: Zheleznogorsk, Krasnoyarsk region. Workplace: Regional boarding school for gifted children “School of Astronautics”.

Summary

The article is devoted to the description of the method of hexagonal learning, which allows delving into the educational problem, to form the cognitive interest of students, to implement a system-activity approach. This method forms logical and critical thinking of students, gives the opportunity to creatively solve chemical problems. The article presents examples using the method of hexagonal learning in chemistry lessons.

Keywords:

Teaching chemistry, critical thinking, hexagonal training.


Methods and Experience Exchange

Application of the criteria system of assessment

Authors:

Kovel M. I.. Adress: Krasnoyarsk. Workplace: Krasnoyarsk Regional Institute for Teachers' Advanced Training and Professional Retraining.

Summary

Due to the introduction to educational process by FGOS the problem of forming and developing regulatory universal learning abilities in school students becomes relevant. The attention of the author of article is focused on using the criteria system of assessment of students’ educational achievements.

Keywords:

Objective self-assessment, assessment, criterion, criteria assessment, way of dialectic training.


Methods and Experience Exchange

Lesson “Carbon hybridization”

Authors:

Shilina L. Ya.. Adress: Novopavlovsk, Stavropol region. Workplace: Secondary school № 13.

Lipey E. L.. Adress: Nevinnomysk, Stavropol region. Workplace: Gymnasium № 10.

Summary

A non-standard approach to teaching the topic of hybridization of atomic orbitals is suggested.

Keywords:

Hybridization, hybrid, content, shape, spatial model of a molecule, molecule geometry.


Methods and Experience Exchange

Lesson on the topic “Chemical reactions”

Authors:

Nevodchikova M. P.. Adress: Kamyazyaksky District, Astrakhan Region. Workplace: Volga-Caspian Secondary School.

Summary

The article suggests the use of the activity approach in chemistry lessons for the 7th grade, which allows to successfully implement the objectives of the lesson and achieve the planned outcomes.

Keywords:

Physical and chemical phenomena, reaction signs, reaction conditions.


Methods and Experience Exchange

On methods of solving calculation tasks in chemistry

Authors:

Tsourikova S. V.. Adress: St. Petersburg. Workplace: Leningrad Regional Institute of Education Development.

Summary

The article presents the author’s approach to solving calculation tasks which are included in the Unified State Exam in chemistry (task No. 34). This method, called by the author as KFC (key fragments of content), is presented as an effective one in solving calculation problems in chemistry.

Keywords:

Key fragments of content (kfc).


Methods and Experience Exchange

From the experience of adapting the fund of assessment tasks

Authors:

Savenkova E. V.. Adress: Efremovsky District, Tula Region. Workplace: Stupino Secondary School № 14.

Summary

Testing tasks for students who are trained according to the chemistry program by O. S. Gabrielyan are presented. The structure of these asks is similar to the structure of OGE in chemistry. The correct answers and assessment criteria are provided.

Keywords:

Main state examination, testing materials, assessment criteria.


Methods and Experience Exchange

Modern test tasks: classification and formulation features

Authors:

Akhlebinin A. K.. Adress: Kaluga. Workplace: Tsiolkovsky Kaluga State University.

Pustovit S. O.. Adress: Kaluga. Workplace: Tsiolkovsky Kaluga State University.

Kuzmenko N. E.. Adress: Moscow. Workplace: Moscow State University.

Summary

The authors suggest an approach to the classification of test tasks that can be used in the educational process at various stages of studying chemistry. Features of formulations of test tasks of various types for high school and university students are considered.

Keywords:

Classification of tests, interactive tests, controlling tests.


Consultation

Features of studying esters and ethers

Authors:

Grachev M. K.. Adress: Moscow. Workplace: Moscow State Pedagogical University.

Orzhekovskiy P. A.. Adress: Moscow. Workplace: Moscow State Pedagogical University.

Summary

The article discusses differences in the structure, methods of obtaining and properties of ethers and esters. This issue is difficult for students, so studying chemistry at the profile level requires its detailed consideration.

Keywords:

Ethers and esters, reaction mechanism, profile training.


Consultation

On the use of the concept of “room temperature”

Authors:

Sulcius A.. Adress: Kaunas, Lithuania. Workplace: Kaunas University of Technology.

Summary

The article deals with the concepts of “room temperature”, “standard conditions”, “temperature coefficient of a reaction”.

Keywords:

Room temperature, standard temperature and pressure.


Extracurricular Activities

Qualitative reactions of organic compounds in the problems of the All-Russian Olympiad

Authors:

Volkova N. V.. Adress: Penza. Workplace: Penza State University.

Vernigora A. N.. Adress: Penza. Workplace: Penza State University.

Firstova N. V.. Adress: Penza. Workplace: Penza State University.

Frolov A. V.. Adress: Penza. Workplace: Penza State University.

Kuznetsova A. V.. Adress: Penza. Workplace: Penza State University.

Kerimov E. Yu.. Adress: Moscow. Workplace: Lomonosov Moscow State University.

Summary

The article presents a brief overview of the experimental round tasks for the all-Russian Olympiad in chemistry. Data on qualitative reactions of oxygen-containing and nitrogen-containing organic compounds occurring in the problems of Olympiads are summarized.

Keywords:

All-russian olympiad in chemistry, organic chemistry, qualitative reactions.


Extracurricular Activities

Creating and using educational videos

Authors:

Kalyalina N. N.. Adress: Moscow. Workplace: Moscow Region State University.

Summary

The process of filming chemical demonstrations with the use of mobile phones and professional equipment is discussed. Recommendations on creating and using educational video materials in the classroom are given.

Keywords:

Graduate students, laboratory instructions, analytical chemistry, video, organic chemistry, computer-based training, laboratory equipment.


Extracurricular Activities

“Children for children”: festival of natural sciences in Kursk

Authors:

Afanasyeva M. N.. Adress: Kursk. Workplace: Kursk Institute for the Development of Education, Secondary school № 7 named after A. S. Pushkin.

Summary

The article gives a brief description of the Festival of Natural Sciences held in Kursk in 2020. Within the framework of the Festival, schoolchildren took part in the All-Russian Dictation on Natural Science, competitions of science projects, master class of interactive chemistry.

Keywords:

Festival of natural sciences, project activity, extracurricular activities in chemistry.


Chemical Experiment

Chemical demonstrations for generalization of knowledge

Authors:

Sutyagin A.A.. Adress: Chelyabinsk. Workplace: South Ural State Humanitarian and Pedagogical University.

Menshikov V.V.. Adress: Chelyabinsk. Workplace: South Ural State Humanitarian and Pedagogical University.

Karpenko I.G.. Adress: Chelyabinsk. Workplace: South Ural State Humanitarian and Pedagogical University.

Summary

The article considers the possibility of using chemical experiment aimed at summarizing various topics of the school chemistry course. By accompanying demonstrations with a system of specific questions, the possibility of using simple laboratory experiments to comprehensively consolidate the theoretical content is shown. The described approach can be used both in a lesson, and in extracurricular activities.

Keywords:

Chemical experiment, chemical demonstrations, integrated approach.


Chemical Experiment

Workshop in studying vitamins

Authors:

Oparina S. A.. Adress: Arzamas. Workplace: Arzamas branch of Lobachevsky State University of Nizhny Novgorod.

Zheleznova Т. А.. Adress: Arzamas. Workplace: Arzamas branch of Lobachevsky State University of Nizhny Novgorod.

Summary

The article describes general characteristics of vitamins, chemical experiment on the detection of vitamins in pharmaceutical preparations and food products, as well as tasks and exercises on this topic. The proposed experimental techniques are simple, so they can be used by teachers of chemistry and biology in extracurricular activities when conducting elective courses, electives, or organizing students’ project and research activities.

Keywords:

Chemical experiment, vitamins, qualitative reactions.


Chemical Experiment

From the experience of studying the topic «Chemical equilibrium»

Authors:

Ivanova I. S.. Adress: St. Petersburg. Workplace: North-Western State Medical University named after I. I. Mechnikov.

Popov А. S.. Adress: St. Petersburg. Workplace: North-Western State Medical University named after I. I. Mechnikov.

Chukhno A. S.. Adress: St. Petersburg. Workplace: North-Western State Medical University named after I. I. Mechnikov.

Summary

The article presents the description of a laboratory practice on the topic «Chemical equilibrium» as well as several examples of thought experiments that allow students to deepen and expand.

Keywords:

Chemical equilibrium, Le Chatelier’s principle, chemical experiment, effect of changing temperature.


Chemical Experiment

Qualitative determination of hydrocyanic acid and its derivatives

Authors:

Leskova O. A.. Adress: Chita. Workplace: Chita State Medical Academy.

Leskov A.P.. Adress: Chita. Workplace: Transbaikal State University.

Summary

The article provides data on the alleged routes of cyanide intake into a living organism. The mechanisms of toxic effects and possible antidotes are considered. Objects for research are proposed, as well as approved methods for the qualitative determination of cyanides and their derivatives in plant materials.

Keywords:

Hydrocyanic acid, cyanides, toxicity, antidote.