Methods and Experience Exchange

Time will show or Afterword to the Unified State Exam in Chemistry

Authors:

Deryabina N. E.. Adress: Moscow.

Golovner V. N.. Adress: Moscow. Workplace: Secondary school № 1259.

Igonina M. V.. Adress: Moscow. Workplace: Secondary school № 1474.

Afanasyeva M. N.. Adress: Kursk. Workplace: Secondary school № 7.

Summary

The 2020 exam in Chemistry caused a wide public outcry. The content and wording of the tasks were discussed and debated. We invite all interested parties to reflect on this situation.

Keywords:

Unified state exam in chemistry 2020, preparation for the exam, complexity of tasks, problems of school chemical education.


Methods and Experience Exchange

Functional literacy of students: conditions and ways of forming

Authors:

Zagranichnaya N. A.. Adress: Moscow. Workplace: Institute for Strategy of Education Development of the Russian Academy of Education.

Parshutina L. A.. Adress: Moscow. Workplace: Institute for Strategy of Education Development of the Russian Academy of Education.

Summary

The article deals with the concepts of academic subjects in the context of the goals and results of natural science education. Special attention is paid to natural science literacy as an integrative educational result that characterizes the quality of education. The concept of natural science literacy is defined in accordance with international approaches to evaluating educational results. The authors consider the composition of natural science competencies that reflect the formation of natural science literacy in a school graduate. The main factors and conditions for the formation of natural science literacy in the process of studying natural science academic disciplines are described.

Keywords:

The concept of teaching a subject, natural science literacy, learning outcomes, natural science competence of students.


Methods and Experience Exchange

Intrgrated lesson on the theme of “Crystal Lattices”

Authors:

Efimkina E. M.. Adress: Saratov. Workplace: Lyceum № 62.

Krylatova Y a. G.. Adress: Saratov. Workplace: Saratov National Research University named after N. G. Chernyshevsky.

Brig T. A.. Adress: Saratov. Workplace: Saratov State Vavilov Agrarian University.

Summary

A synopsis of the lesson on the theme of “Crystal Lattices” is given Students will be able to learn and remember previously unknown information and practice in performing integrated tasks. Tasks are designed for different levels of student’s training.

Keywords:

Crystal lattices, integrated lesson, integrated tasks.


Methods and Experience Exchange

Problem-based learning using a QR code

Authors:

Yankiv K. F.. Adress: Kursk. Workplace: Southwestern State University.

Kozlova M. A.. Adress: Kursk. Workplace: Southwestern State University.

Summary

The use of a QR code at the school level allows students to learn chemistry through modern information technologies. We offer the study of the theme “Thermal effect of chemical reactions” based on a problematic approach using a QR code.

Keywords:

Problem-based learning, QR code, technique, thermal effect of chemical reactions, chemical experiment, problem task.


Methods and Experience Exchange

Leafing the family album

Authors:

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

Lipey Y e. L.. Adress: Nevinnomyssk. Workplace: Gymnasium № 10 LIK.

Summary

The description of a lesson on generalization and systematization of knowledge on the topic “Genetic connection between the main classes of hydrocarbons” is proposed. At the lesson, students use photos from their family albums.

Keywords:

Genesis, genetic connections, chemical formula, chemical transformations.


Methods and Experience Exchange

Lesson on “Alcohols”

Authors:

Spiridonova E. B.. Adress: Biysk, Altai Territory. Workplace: Secondary school № 4.

Summary

The article deals with creating meaningful and organizational conditions for studying the structure, nomenclature, isomerism, physical properties of monohydric alcohols; forming students’ skills for performing and interpreting chemical experiment; stimulating students to set goals, plan their activities, analyze individual achievements.

Keywords:

Alcohols, functional group, homology, isomerism, physical properties, chemical properties.


Methods and Experience Exchange

Discussing the accuracy of terms and definitions

Authors:

Chetverin V. B.. Adress: Moscow. Workplace: State Autonomous Educational Institution Education Center № 548 “Tsaritsyno”.

Summary

The article considers the inaccuracies of terms and formulations that are found in some textbooks, manuals and tasks of the Unified State Exam. The possibility of clarifying these concepts is discussed.

Keywords:

Accuracy of terms and definitions, questions of general chemistry, organic and inorganic chemistry.


Methods and Experience Exchange

Use of drawings in solving problems on solubility

Authors:

Khasieva J. S.. Adress: Tskhinvali. Workplace: South Ossetian state University named after A. Tibilov.

Djioeva R. G.. Adress: Tskhinvali. Workplace: South Ossetian state University named after A. Tibilov.

Summary

Authors propose a universal algorithm for solving solubility problems using drawings.

Keywords:

Solubility, crystalline hydrates, drawings.


Methods and Experience Exchange

Applied aspect of chemical education in practice oriented tasks

Authors:

Kolchanova L. V.. Adress: Belgorod. Workplace: Belgorod State National Research University.

Burzhinskaya T. G.. Adress: Belgorod. Workplace: Belgorod State National Research University.

Kolchanova A. R.. Adress: Belgorod. Workplace: Belgorod State National Research University.

Summary

The article is devoted to the use of the applied aspect in the school chemical education. The authors consider problem solving as one of the effective methods of demonstrating the applied aspect of chemistry. It is shown that problems with applied content not only reveal the application of chemistry in the real life, but also activate mental activity, develop students’ interest in the subject.

Keywords:

Objectives, interdisciplinary connections, activation of cognitive activity and students’ interest.


Science and Industry

Mechanism of cleansing action of surfactants

Authors:

Belov D. V.. Adress: Nizhny Novgorod. Workplace: Central Research Institute “Burevestnik”.

Belyaev S. N.. Adress: Nizhny Novgorod. Workplace: Institute of Applied Physics of the Russian Academy of Sciences.

Summary

The cleansing action of surfactants is a combination of several phenomena and consists of a number of parallel and sequential processes. A detailed determination of the mechanism of the cleansing action is a complex task that has the most important scientific, theoretical and practical significance. The theory of detergent action sheds light on a number of processes and phenomena that are widespread in nature and human activities.

Keywords:

Surfactants, surface tension, intermolecular forces, detergent action, micelle, wetting, peptization, coagulation, adsorption, emulsification, solubilization, hydrophilicity, hydrophobicity, contamination, foaming, soap, detergent, synthetic detergents.


Chemical Experiment

Organization of research activities in the study of reaction rate

Authors:

Aidina I. G.. Adress: Pavlodar, Kazakhstan. Workplace: Nazarbayev Intellectual School of Chemistry and Biology.

Summary

The article presents laboratory practice with the elements of research on the topic “Factors affecting the rate of a chemical reaction”. In these practical tasks, students plot the results obtained during the experiment on the grid; evaluate the accuracy of the data, suggest and explain an improvement to this experiment. Also, a thought experiment on this topic was proposed as an alternative to practical work in case of a lack of reagents or equipment.

Keywords:

Reaction rate, factors affecting the rates of chemical reactions.


Facts from the History of Chemistry

Isaac Asimov: “It was a good life”

Authors:

Anisimova T. V.. Adress: Smolensk. Workplace: Smolensk State University.

Mirenkova E. V.. Adress: Smolensk. Workplace: Smolensk State University.

Summary

The article is dedicated to the centenary of the birth of the American biochemist and science fiction writer Isaac Asimov. Biographical information is provided, and some works from the author's rich heritage are listed. A brief analysis of popular science books of chemical content is given.

Keywords:

Azimov, biography, literary production, popularization of chemical knowledge.


Extracurricular Activities

Optional course “Chemistry against viruses”

Authors:

Perevozchikova N. V.. Adress: Moscow. Workplace: Secondary school № 1246.

Summary

The author proposes a description of the optional course “Chemistry against viruses” for natural science or medical classes. The integrated course (Chemistry, Biology, Life Safety) is recommended for the 10-graders. The purpose of the course is to familiarize students with the material on modern methods of combating pathogens.

Keywords:

Optional course, medical classes, antibiotics, antiseptics, disinfectants.


Extracurricular Activities

Optional course “Chemistry and healthy diet”

Authors:

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

Summary

The article describes the optional course “Chemistry and healthy diet”, aimed at expanding knowledge of high school students and developing their nutritional culture. The content of the optional course covers the following sections: the main chemical components of food (proteins, fats, carbohydrates, water, vitamins), dietary supplements, age and geographical features of the diet, principles of rational nutrition. The scenario of an optional session on the topic “What makes the perfect breakfast” is given.

Keywords:

Optional course, proteins, fats, carbohydrates, diet, healthy diet.