Schoollaboratory: according to the refgulations

Authors:

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

Summary

P. I. Bespalov, from the Chair of Science Education of Moscow Institute of Open Education, answer our readers' questions concerning safety guidelines for a school chemistry lab.

Keywords:

Keeping reactants, safety code.


Science and Industry

Isopolycompounds in modern coordination chemistry

Authors:

Medvedev Y u. N.. Adress: Moscow. Workplace: Institute of Biology and Chemistry of Moscow State Pedagogical University.

Isaychev M. V.. Adress: Moscow. Workplace: Institute of Biology and Chemistry of Moscow State Pedagogical University.

Summary

The article contains an overview of the most important information on the properties of isopolycompounds (polyoxometallates) as representatives of coordination compounds. Equilibria in aqueous solutions of vanadates, molybdates and tungstates are considered. The composition, structural formulas and polyhedral structure of isopolycompounds are discussed as well as the main directions of their practical application.

Keywords:

Polyoxometallates, isopolycompounds, coordination compounds, polycondensation, vanadates, molybdates, tungstates, molybdenum blue, molecular containers.


Methods and Experience Exchange

Types and functions of illustrations in teaching chemistry

Authors:

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

Summary

The article reveals options for systematization of illustrative material used in teaching chemistry. The distinguishing features of various types of visual images are described. Functions of the main types of images are considered.

Keywords:

Means of visualization, systematization of illustrative material, functions of visual images.


Methods and Experience Exchange

How to assess the level of regulatory universal learning actions

Authors:

Kortunov G. M.. Adress: Moscow. Workplace: Institute of biology and chemistry of Moscow State Pedagogical University.

Borovskikh T. A.. Adress: Moscow. Workplace: Institute of biology and chemistry of Moscow State Pedagogical University.

Summary

Methods of assessing the level of regulatory universal learning actions in students in the course of studying chemistry are discussed. Specific tasks are suggested. Foreign experience in assessing students’ self-regulatory strategies is described.

Keywords:

Regulatory universal learning actions in studying chemistry, diagnostics of universal learning actions’ level in students, Self-Regulatory Strategies Scale.


Methods and Experience Exchange

Classroom research on the theme “Aluminum”

Authors:

Nevodchikova M. P.. Adress: Kamyzyaksky District , Astrakhan Region. Workplace: Volgo-Caspian Secondary School.

Summary

The author offers a lesson for 9-graders on the theme “Aluminum”. Using elements of problem-based learning and project work, the teacher gives students the opportunity to explore the properties of aluminum and its application.

Keywords:

Aluminum, chemical element, elemental substance, physical and chemical properties, crystal lattice, amphotericity.


Methods and Experience Exchange

Classroom workshop on studying properties and methods of obtaining hydrochloric acid

Authors:

Demidov V. A.. Adress: Kirov. Workplace: Secondary School № 51.

Summary

The description of a lesson «Hydrochloric acid and its properties. Obtaining hydrochloric acid» (9th grade) is suggested. Working in groups during the lesson, students carry out chemical experiments. They apply their knowledge in a familiar, changed and new situations.

Keywords:

Classroom workshop, hydrochloric acid, chemical experiment.


Methods and Experience Exchange

Developing environmental culture by means of the project method

Authors:

Zolotavina E. A.. Adress: Zavodoukovsk, Tyumen region. Workplace: Secondary School № 1..

Summary

The author presents the educational project “Natural Sources of Hydrocarbons Are Accused”. This is a lesson of studying new material with the use of multimedia technology and the project method.

Keywords:

Natural sources of hydrocarbons, oil, natural gas, educational project, multimedia technology.


Methods and Experience Exchange

How we study the application of alcohols

Authors:

Kuzovaya T. V.. Adress: Belogorsk, Amur region. Workplace: Secondary School № 1.

Summary

The lesson on the topic “Alcohols” in the form of a role play is suggested. The main purpose of the lesson is to show that alcohols are a large group of chemical compounds with a vast range of application. Much attention is paid to a social problem of alcoholism.

Keywords:

Role-play lesson, ethanol, alcoholism.


Methods and Experience Exchange

Classroom conference on the theme “Household Chemicals and Human Health»

Authors:

Kazanovskaya E. B.. Adress: Stavropol. Workplace: Stavropol Presidential Cadet School.

Summary

The article is devoted to the project learning as one of the modern pedagogical technologies. The author proposes methodological description of the lesson in the form of a conference in which the results of the training project for students in for 9-10-graders are discussed.

Keywords:

Project-based learning, research, classroom conference, cognitive activity.


Methods and Experience Exchange

On using a philosophical dictionary in a lesson

Authors:

Serokurova Y u. L.. Adress: Lesnikovo, Kurgan region. Workplace: Kurgan State Agricultural Academy named after T. S. Maltsev.

Summary

The option of studying chemical concepts is offered, proceeding from the general characteristic of a concept presented in a philosophical encyclopedic dictionary. Basic concepts of chemistry are analyzed from the point of view of the volume and content. Interdisciplinary connections with the course of physics are considered.

Keywords:

Concept, structure and content of a concept, patrimonial and specific characteristics, main concepts of chemistry.


Methods and Experience Exchange

Main approaches to solving calculation tasks

Authors:

Zhukova N. I.. Adress: Ussuriysk, Primorye territory. Workplace: Far-East Federal University, School of pedagogy.

Summary

The work is devoted to solving one school chemical task by different methods.

Keywords:

Task, solving methods, algebraic method, proportion, quantity of substance, mole, molar mass.


Methods and Experience Exchange

Calculation tasks: correct answers

Authors:

Khrustalev A. F.. Adress: Sevastopol. Workplace: Sevastopol State University.

Summary

Tasks from chemistry textbooks used at present and correct answer keys for them are considered.

Keywords:

Calculation tasks, approximate calculations.


Consultation

Chemistry without logical gaps. Acid-base balance and pH of solutions

Authors:

Manuilov A. V.. Adress: Novosibirsk. Workplace: Institute of Educational Research of Gifted Children, Russian Academy of Education. Special Educational Scientific Center of Novosibirsk State University.

Summary

The article deals with the acid-base equilibrium in aqueous solution as a special case of equilibrium in chemical processes. Concepts of electrolytic dissociation, strong and weak electrolytes, acidity, dissociation constant and degree of dissociation are discussed, the pH scale is considered. The formulas to calculate the pH and α in the solutions of weak acids and bases are given with the account of the law of the dilution. Examples of problems are given.

Keywords:

Electrolytic dissociation, chemical equilibrium dissociation constant, degree of dissociation, strong and weak electrolytes, acidity, basicity, pH, pH scale, law of dilution.


Chemical experiment

Determination of heavy metals by means of paper chromatography

Authors:

Sibrikov S. G.. Adress: Yaroslavl. Workplace: P. G. Demidov Yaroslavl State University.

Kazin V. N.. Adress: Yaroslavl. Workplace: P. G. Demidov Yaroslavl State University.

Guzov Y e. A.. Adress: Yaroslavl. Workplace: P. G. Demidov Yaroslavl State University.

Summary

The technique of paper chromatography for analytical determination of heavy metals is considered. Identification of the compound is carried out by the mobility index in a certain eluent, and also by using qualitative reaction for the cations studied.

Keywords:

Paper chromatography, heavy metals, environment.


Chemical experiment

Mini-quest as a form of practical work

Authors:

Kovalenko I. N.. Adress: Rostov-on-Don. Workplace: Lyceum № 27 named after A. V. Suvorov.

Summary

The description of a practical work “Obtaining and properties of compounds of metals” in the form of a mini-quest is suggested.

Keywords:

Quest, development of intellectual activity, useful properties of salt, roles in groups, qualitative reactions.


Extracurricular Activities

Solving Olympiad tasks on deriving the formula for a substance

Authors:

Kuramshin B. K.. Adress: Kazan. Workplace: Kazan Volga region Federal University.

Summary

The algorithm of solving Olympiad tasks on deriving the formula for a substance is discussed. The examples of tasks and their detailed solutions are given.

Keywords:

Chemistry olympiads, chemical equation, mathematical methods of solving chemical problems.