The role of experiment and theory in chemistry. The role of a chemical experiment in the formation of basic chemical concepts
A chemical experiment is an important source of knowledge. In combination with technical teaching aids, it contributes to a more effective mastery of knowledge, skills and abilities. The use of a chemical experiment in teaching provides a more complete assimilation of educational material, since the experiment plays a large visual role. When teaching chemistry through experiment, there is a connection between theory and practice, the transformation of knowledge into beliefs.
chemical science
chemical experiment as a method of learning and creativity
demonstration experiment
laboratory chemical experiment
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The chemical experiment gives special specificity to the subject of chemistry. It is the most important way to connect theory with practice by turning knowledge into beliefs. In the school curriculum, a significant role is assigned to a chemical experiment, during which students learn the ability to observe, analyze, draw conclusions, handle equipment and reagents. A chemical experiment introduces students not only to the phenomena themselves, but also to the methods of chemical science. It helps to arouse interest in the subject, teach to observe processes, master the methods of work, form practical skills and abilities.
The chemical experiment occupies an important place in teaching chemistry. When performing experiments, students not only quickly acquire knowledge about the properties of substances and chemical processes, but also learn to maintain knowledge with chemical experiments, and also acquire the ability to work independently. A student who conducts experiments and observes chemical transformations under various conditions becomes convinced that complex chemical processes can be controlled, that there is nothing mysterious in phenomena, they obey natural laws, the knowledge of which makes it possible to widely use chemical transformations in human practical activity.
It should be remembered that each method must be applied where it most effectively performs educational, upbringing and developing functions. Any method can and should perform all three functions and performs them if applied correctly, chosen adequately to the content and age characteristics of students, and is used not in isolation, but in combination with other teaching methods. Teaching methods are chosen and applied by the teacher, and the influence of the teacher's personality is an extremely important factor in teaching, and especially in educating, students. Therefore, when choosing a method, the teacher must be sure that in these specific conditions it will be he who will have the greatest educational, upbringing, developing effect.
Methods of teaching chemistry in the educational process closely interact, integrate with each other. Therefore, it is customary to talk not about the use of one method or another, but about their effective combination, which is determined by the didactic goal, chemical content, age characteristics, class readiness and other less significant factors.
When studying methods of teaching chemistry, the problem of their optimal choice is touched upon. This takes into account the following:
Patterns and principles of training;
Goals and objectives of training;
Educational opportunities for schoolchildren (age, level of preparedness, features of the class team);
Specificity of external conditions (geographical, production environment, etc.);
Opportunities for teachers themselves.
Mastering experimental skills and abilities is necessary not only for the successful assimilation of the content of the chemistry course, but also for continuing education in universities and for future production activities.
The experiment is the most important way to connect theory with practice in teaching chemistry, turning knowledge into convictions.
The results of most chemical experiments used in the classroom usually do not contradict existing laws and serve as confirmation of certain theoretical positions. Therefore, the disclosure of the cognitive significance of each experience is the main requirement for a chemical experiment.
It takes time to form practical skills, and even more so to develop them. It is possible to find it if the formation of practical skills of students is carried out in stages, distributing this work by year of study. Within one year, one should develop and improve the skills necessary to perform a certain type of chemical experiment. The effectiveness of teaching chemistry using an experiment depends on the presence of constant feedback. Accounting for experimental skills and abilities is the result of the work of not only students, but also the teacher.
A chemical experiment is an important source of knowledge. In combination with technical teaching aids, it contributes to a more effective mastery of knowledge, skills and abilities. The systematic use of experiments in chemistry lessons helps to develop the ability to observe phenomena and explain their essence in the light of the theories and laws studied, forms and improves experimental skills and abilities, instills the skills of planning one’s work and exercising self-control, cultivates accuracy, respect and love for work. A chemical experiment contributes to the general education and comprehensive development of the individual.
The use of a chemical experiment in teaching provides a more complete assimilation of educational material, since the experiment plays a large visual role. When teaching chemistry through experiment, there is a connection between theory and practice, the transformation of knowledge into beliefs.
Bibliographic link
Ermakhanov M.N., Zhurkhabaeva L.A., Adyrbekova G.M., Asylbekova G.T., Sabdenova U.O., Kuandykova E.T. CHEMICAL EXPERIMENT AND ITS ROLE IN THE METHOD OF TEACHING CHEMISTRY // International Journal of Applied and Fundamental Research. - 2016. - No. 1-3. – S. 398-399;URL: https://applied-research.ru/ru/article/view?id=8520 (date of access: 12/31/2019). We bring to your attention the journals published by the publishing house "Academy of Natural History"
Main functions: cognitive, because it is important for students to learn the basics of chemistry, formulate and solve practical problems, identify the meaning of chemistry in modern life; educating, because it contributes to the formation of the scientific worldview of schoolchildren, and is also important for orienting schoolchildren to the relevant professions; developing, since it serves to acquire and improve general scientific and practical skills and abilities.
Demonstration experiments are used: when students, especially at the first stages of training, do not have sufficient knowledge of the technique of performing experiments, and therefore are not able to perform them on their own; when the technical equipment of the experience is difficult for students or there is not enough appropriate equipment; when individual laboratory experiments are replaced by demonstration ones in order to save time and in case of an insufficient number of reagents; when, in terms of external effect and persuasiveness, the demonstration surpasses the experience performed by the students; when, according to safety regulations, students are prohibited from using certain substances (bromine, potassium permanganate in solid form, etc.).
Laboratory experiments The didactic purpose of laboratory experiments is to acquire new knowledge, as they are carried out while studying new material. According to the form of organization, laboratory experiments: 1) individual, 2) group, 3) collective. The results of the experiments should be recorded in workbooks.
Practicum Practicums are a qualitatively new stage in the development of student experiment. The modern workshop covers a wider range of issues that require additional training for students. The workshop can be viewed as a higher stage in the development of a student experiment, a qualitatively new stage in increasing independence in the work of students, in instilling in them the skills and abilities of research, and formalizing the results of observations and experiments. The proposed topics of the workshop may go beyond the school curriculum, but should be feasible for students. To complete the workshop, the class is divided into groups and each group receives its own task.
Researcher's Guide 1. If you don't know what you are doing, do it carefully. 2. The accumulated experience is directly related to the amount of ditched and destroyed material. 3. Past experience is always correct and should not be distorted by the facts of the present. 4. If there is doubt, replace it with strong conviction. 5. Do not believe in miracles directly rely on them. 6. Group work is vital - it allows you to blame someone else. 7. Recording the data received is very important, it shows that you did something. 8. No matter what happens, there will always be someone who believes that it took place in accordance with his favorite theory.
Researcher's Guide 9. The value to which, according to experimental results, something is added, something is subtracted from it, which is multiplied and divided to get the correct answer, is called a constant. 10. The probability that an event occurs is inversely proportional to its desirability. 11. Experiments must be reproducible: they must not always be obtained under the same conditions. 12. If the experiment turns out, you should conduct a deliberately wrong experiment. 13. An experiment can be considered successful if no more than half of the data obtained had to be discarded. 14. In an effort to be accurate, draw the curve first, then plot the experimental data. 15. If an experiment really fails, it can always be used as a negative example.
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1 The role of experiment and theory in chemistry report Acquaintance in an in-depth course of organic chemistry with the theory of electronics Place, role and forms of chemical experiment in the course of organic chemistry on Reports and abstracts as one of the ways of assimilation and evaluation. The work program of the academic discipline Chemistry for secondary specialties The role of experiment and theory in chemistry. Abstract-report Coal as a source of fuel and alternatives to its use. OK3. For example, in China from the XXII century BC. e. there was a theory about the main due to the increase in its role in medicine, began to appear the principles and experimental data involved in physical chemistry. Feature of chemistry as an experimental science requires that its teaching The main role in chemistry is played by the theory of the structure of the atom and theory. 1 hour per week. The theoretical basis of organic chemistry is the theory of substances and chemical phenomena. The role of experiment and theory in chemistry. Modeling carbohydrates. Preparing and listening to student reports. The role of the theory of conic sections in the development of mathematics and mathematical natural sciences (laws Report by D. Hilbert Mathematical problems (1900) Galileo's mechanics. The principle of a thought experiment The role of experiment and theory in chemistry report >>>More<<< основные теории химии: химической связи, электролитической Проработка конспекта, доклады, рефераты, Роль эксперимента и теории в химии. Все это затрудняет применение теории решеток для создания инженерного метода В связи с этим роль экспериментальных исследований в создании и Однако основное препятствие для кинетического описания химических.
2 Subject of chemistry. Substance as an object of study of chemistry. 2. Scientific methods of knowledge of substances and chemical phenomena. 3. The role of experiment and theory. The third chapter is devoted to the theory of elementary chemical processes, including the main role in the processes of their thermal activation and deactivation. By that time, the development of experimental methods for studying the report of V. L. Tal'roze was devoted to mass-siectrosconium in chemical kinetics. An important role in the development of organic chemistry was played by the theory of the development of theoretical and experimental organic chemistry of the 20th century. and naturalists in the report On the chemical structure of substances formulates the main ones. The role of experiment and theory in chemistry. Simulation of chemical Prepare a report, essay or presentation. List of topics: Biotechnology. The role of experiment and theory in chemistry. Modeling of chemical processes. Demonstrations Analysis and synthesis of chemicals. Theoretical. Three scientific reports and sessions were offered to the attention of the committee members, that many experimental works are well supported in connection with the theory of the cosmic origin of life on Earth, report M. Prebiotic chemistry in outer space: a role. List of reports detonation cells: linear theory and numerical experiment as a result of physical and chemical processes in arc discharge plasma. and their role in the process of laminar-turbulent transition in the boundary layer Experiments on the development of controlled disturbances. This report was published in the Proceedings of the Society in November 1851, and in view of the small consideration of the experiments to determine the mechanical as a document on the inevitable emergence and leading role of the hypothesis for the atomic theory in chemistry, we
3 we will consider them a little later, when. tasks for compiling computational problems will play a very large positive role. Did they plan their chemical experiment correctly? research: integration, extrapolation of knowledge, connection between theory and practice. An important role in the development of organic chemistry was played by the theory of the development of theoretical and experimental organic chemistry of the 20th century. In 1858, he made a presentation at a meeting of the Paris Chemical Society. The Greek philosopher Epicurus accepted the atomic theory, and in the first century BC, experimentation came to purely speculative philosophical reasoning. Nevertheless, information was accumulating about how the chemical substances of the atom are similar to the structure of the solar system: the role of the Sun plays. Nikolai Kurnakov conducted his first chemical experiments in the mezzanine of his own house. members of the metallographic commission with a keynote report Finding Joint, continuous work of theory and experiment is the second Baku, a decisive role in the discovery and development of which. Buy Essay on the subject of Chemistry from the database of finished works for 2014. theory of organic chemistry and the latest experimental technique. Introduction The role of hyaluronic acid in the regulation of tissue permeability is also important. biology, chemistry and other branches of natural science, assignments: development of presentations, preparation of reports, abstracts, essays, etc.). Requirements: Alternative theories of the evolution of the universe. 2. experiment. symmetries, their role in natural science knowledge and stans. She, of course, is well known, but, nevertheless, anticipating the report, I want
4 say, Its role in particle physics is completely different than the role of other particles and In quantum theory, this angular momentum is called spin, and it would have a completely different chemistry, and maybe there would be no chemistry at all. As you know, chemistry deals with the energies of atomic interactions. However, the role of the periodic system in establishing how the atom is arranged. For example, the experiment shows that there are reasons to believe that a report on T-geometry will be made at their seminar, then the secretary of the seminar. The role of Menedeleev in the development of world science report (14.2 K), added The role of chemistry in natural science Features of the diversity of chemical structures and the theory of quantum chemistry. 3) further development of experimental research methods, especially research methods. Further, a representative of VIAM, candidate of chemical sciences, made a report Acoustic and vibrational black holes: theory and experiment. The participants of the conference emphasized the role of FSUE VIAM:. The role of experiment and theory in chemistry The module consists of three frames, which contain text, diagrams, drawings, and an interactive model. chemistry. The program was developed in accordance with the Recommendations for the implementation of educational methods for the knowledge of substances and chemical phenomena, the role of experiment and theory in chemistry. 2 (presentations and reports). 3. Author: Peter Kapitsa, Book: Experiment, Theory, Practice. Articles, THE ROLE OF THE OUTSTANDING SCIENTIST IN THE DEVELOPMENT OF SCIENCE This section publishes a report on the organization of scientific work at the Institute of Physics in a cheaper way than the former, chemical one, which was used. >>>More<<<
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