2020 № 10

The criteria for selecting materials for organizing distance learning in chemistry are discussed. Several examples of a reasonable selection of videos for working with students in 8-11 classes are provided.

Nano- and microgels are promising soft polymers which are used in various fields: as stabilizers, sensors, catalysts, selective sorbents, capsules for drugs, etc. They consist of a network of cross-linked polymer chains filled with solvent molecules. The article describes synthesis methods and structure of nano- and microgels. Several examples of their application are given. Ideas for students’ science projects are discussed.

The article reveals the essence of creative tasks which are used in psychology to study the creative process. Along with this, a brief history of using creative tasks with subject content in teaching is given. As a result of analyzing the experience of working with creative tasks in chemistry, the basis for systematization of creative tasks in chemistry is proposed.

The article discusses the features of teaching chemistry related to such psychological phenomena as «clip» perception and thinking. It is shown, that conducting a chemistry lesson in the form of a game contributes to the adaptation of complex chemical content to the psychological features of teaching modern schoolchildren. Students’ attention is drawn to an amazing natural phenomenon – lake water color changes due to chemical reactions of sulfur and iron compounds.

The article presents the didactic scenario of a chemistry lesson on the topic “Corrosion of Iron. Methods of Corrosion Protection”, developed on the basis of leading ideas of practice-oriented training. The goals and objectives of the lesson, its main stages as well as the joint activities of the teacher and students at each stage are described. The lesson is given in the form of an educational game.

A lesson in the form of a role-playing game stimulates the cognitive activity of students. Such lessons help students find and apply their own knowledge and skills in conditions that are similar to real life situations. Role-playing games provide an opportunity to use new horizons for an independent search for knowledge, contribute to the development of creative activity. In the role-playing activity students get acquainted with the structure, properties and significance of carbon dioxide in human life and in nature. This scenario can be used in chemistry and biology lessons when studying carbon dioxide.

Solving calculation problems is not only an integral part of students’ chemical education, but also one of the most important indicators of the development of students’ chemical thinking and assimilation of educational material. A lot of students’ difficulties in the exam are associated with Task 34, which requires conducting combined calculations using formulas and equations of chemical reactions. The article deals with the method of solving calculation problems on determining the composition of mixtures.

The article describes the Nobel Prizes received by scientists who have researched ways to combat malaria.

Training tasks similar to Task 3 of the Basic State Exam in Chemistry (2021) are provided.

This article describes how to calculate the molar mass of a person, knowing its composition. It is important to know the molar mass of a person when conducting biochemical and medical examinations.

The article describes the scenario of an intellectual game, the goal of which is to popularize natural sciences at school, to motivate students to study subjects of the natural science cycle. During the game, teams from different classes compete with each other, answering questions. In order to make the game look spectacular, it includes various types of cognitive activities: scientific pantomime, thematic natural science quiz, erudite competition, festival of scientific videos, etc.

A team game scenario for eighth graders is given. The goal of the game is to consolidate initial chemical knowledge and form a steady interest and motivation for students to study chemistry.

A description of the cognitive game on the topic “Metals” for students in grades 9 or 11 is provided. The organization of the game involves working in small groups and collaboration training technology, which helps master a significant amount of material in a short period of time. The game contributes to the development of motivation and cognitive interest of students in chemistry, their regulatory and communicative skills.

The article raises the issues of organizing control over the formation of skills in the process of conducting a real chemical experiment at school. Approaches to classification of a chemical experiment are being updated. The authors provide examples of practice-oriented task models used in control and assessment procedures; consider the difficulties faced by teachers in preparing and conducting a pilot task included in the Basic State Exam in chemistry.

A description of chemical experiments illustrating the properties of oxalic acid and oxalates is given. The use of available reagents and simple experimental techniques make it possible to conduct these experiments in a school laboratory.