Some Facts from History of Chemistry

2015 Nobel Prize in Chemistry

Authors:

Proycheva L. G.. Adress: Moscow. Workplace: “Centrhimpress”.


Methods and Experience Exchange

Method of ion-exchange reactions teaching: system-activity approach

Authors:

Akhmetov М. A.. Adress: Ulyanovsk. Workplace: Ulyanovsk State Pedagogical University.

Zorova E. Yu.. Adress: Dimitrovgrad. Workplace: Secondary school № 17.

Summary

The paper presents the method of ion-exchange reactions teaching, built on a system-activity approach. A distinctive feature of this method is individual work of students, who use a self-discovery of new chemical knowledge by development of theoretical thinking.

Keywords:

Chemical education, ion-exchange reaction.


Methods and Experience Exchange

Producing knowledge in the process of personal cognitive activity

Authors:

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

Pak M. S.. Adress: Saint-Petersburg. Workplace: Herzen State Pedagogical University.

Summary

The principal element of forming students’ cognitive skills is performing cognitive tasks. The article highlights cognitive types and levels of educational tasks. The emphasis is on the methods of constructing cognitive tasks promoting students’ creation of new knowledge. Numerous examples of tasks are given.

Keywords:

Cognitive skills of students, cognitive tasks, classification of cognitive tasks in chemistry.


Methods and Experience Exchange

Research lesson on quantitative relations in chemistry

Authors:

Zolotavina E. A.. Adress: Zavodoukovsk. Workplace: Secondary school № 1.

Summary

The author presents a lesson on the topic "Amount of substance. Mole. Molar mass. Molar volume of gases", in which the eighth graders systematize their knowledge about these concepts, identify their relationship and use it in solving experimental problems.

Keywords:

Amount of substance, molar mass, molar volume of gases, problem solving.


Methods and Experience Exchange

Generalizing knowledge on bases

Authors:

Bondarev G. V.. Adress: Volgograd. Workplace: Lyceum № 9 named after A. N. Neverov.

Summary

The lesson is worked out taking into account the theme studied and age-related features of students. An activity-based approach to learning is used. Using a distance course allows to improve visualization at the lesson. Watching video promotes better mastering knowledge and motivation of students to study the subject. Working in groups allows considering larger educational material, and every student can be involved in research activity.

Keywords:

Bases, classification of bases, chemical properties of bases, distance course.


Methods and Experience Exchange

Test tasks for establishment of the correct sequence

Authors:

Ganina N. V.. Adress: Moscow. Workplace: Moscow State University of Fine Chemical Technologies named after M. V. Lomonosov.

Summary

The test tasks to establish the correct sequence for various sections of the chemistry course are described. These tasks can be used to control the level of students ' knowledge and learning. The tasks are developed for the following topics: Periodic Law, chemical bonding, solutions, electrolytic dissociation, relationship between organic substances. The advantages and disadvantages of the tasks are considered.

Keywords:

Testing, test in chemistry, test task, test task to establish the correct sequence.


Methods and Experience Exchange

On teaching students how to solve calculation problems

Authors:

Pecheriy A. A.. Adress: Moscow. Workplace: Secondary school № 1206.

Summary

Methodical approaches to solving calculations problems based on equations of chemical reactions, thermochemical equations and calculation of a mass fraction and mass of substance in solution are considered (checked at the Unified State Examination).

Keywords:

Unified state examination, solving calculation problems.


Consultation

Element № …“the only one and the most”

Authors:

Babkov A. V.. Adress: Moscow. Workplace: I.M. Sechenov First Moscow State Medical University.

Popkov V. A.. Adress: Moscow. Workplace: I.M. Sechenov First Moscow State Medical University.

Filippova A. A.. Adress: Moscow. Workplace: I.M. Sechenov First Moscow State Medical University.

Summary

The article presents data on the properties and other characteristics of the chemical elements from rubidium to palladium, most clearly distinguished from all others.

Keywords:

Atom, element, rubidium, strontium, yttrium, zirconium, niobium, molybdenum, technetium, ruthenium, rhodium, palladium.


Chemical experiment

Research chemical experiment under the topic "Polymers"

Authors:

Pilnikova N. N.. Adress: Saint-Petersburg. Workplace: Secondary school № 496.

Summary

Instructions for conducting school chemical experiment for the study of plastics that are used as packaging materials for food products and a range of cognitive tasks for students are presented. Research chemical experiment aims to convince students of the importance of chemical knowledge to solve practical problems, compliance with the rules of healthy and ecologically sound lifestyle.

Keywords:

Research chemical experiment, polymers, plastic.


Chemical experiment

Chemical experiment on the topic "Phenols"

Authors:

Biryukova E. G.. Adress: Volgograd. Workplace: State Socio-Pedagogical University.

Savin G. A.. Adress: Volgograd. Workplace: State Socio-Pedagogical University.

Summary

The authors offer their own surveys to conduct chemical experiment on the theme: "Phenols". All the described experiments with phenolic compounds are based on the use of well-known everyday substances that will certainly increase the interest of students towards the subject.

Keywords:

Specialized education, chemical experiment, phenols, qualitative reactions of phenols, chemical identification of phenols, signs of reactions.


Chemical experiment

Investigation of vegetable oil quality

Authors:

Volkov V. N.. Adress: Pskov. Workplace: Education Centre "Pskov pedagogical complex".

Volkova L. A.. Adress: Pskov. Workplace: Education Centre "Pskov pedagogical complex".

Podkopaeva I. N.. Adress: Pskov. Workplace: Humanities Lyceum.

Summary

Vegetable oil chemical composition, nutritional value and production methods are briefly described in the article. Procedures of identification of vegetable oil organoleptic, physical and chemical quality ratings are presented. Research findings of refined and crude sunflower-seed oil with brand name “Yug Rusi” (The South of Russia) produced in Rostov-on-Don are considered.

Keywords:

Refined and crude sunflower-seed oil, organoleptic, physical and chemical quality ratings, titration.


Post-Curriculum exercises

From the experience in preparation for the competitions in chemistry

Authors:

Semenova I. G.. Adress: Saint-Petersburg. Workplace: Liceum № 369.

Summary

The article presents the experience of the author in preparing students in grades 8-9 to participate in the chemical competitions of different levels. The course program and a set of tasks are suggested.

Keywords:

сhemistry competitions, tasks of high level, course program.


Chemical experiment

Gas as the fuel of the future (Dad, buy me a car)

Authors:

Ivanova L. V.. Adress: Orel. Workplace: Gymnasium № 19.

Summary

Today understanding of elementary chemistry fundamentals is crucial for everyone. It is important to actively involve junior students in extracurricular activities in order to develop their interest in the subject. The article suggests that the play-and-learn structure of an activity makes it possible to determine the prospects of road transport development and reveals the importance of the chemical experiment.

Keywords:

Extracurricular activities, hydrogen fuel, project, car of the future.