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# | Search | Downloads | ||||
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1 | . // Tomsk State Pedagogical University Bulletin. 1997. Issue 2 (2). P. 20-22 . | 981 | ||||
2 | . // Tomsk State Pedagogical University Bulletin. 1997. Issue 2 (2). P. 49-51 . | 930 | ||||
3 | . // Tomsk State Pedagogical University Bulletin. 1998. Issue 2 (5). P. 62-69 . | 1071 | ||||
4 | . // Tomsk State Pedagogical University Bulletin. 1998. Issue 2 (5). P. 70-81 . | 927 | ||||
5 | . // Tomsk State Pedagogical University Bulletin. 1999. Issue 7 (16). P. 3-7 . | 923 | ||||
6 | . // Tomsk State Pedagogical University Bulletin. 1999. Issue 7 (16). P. 8-12 . | 981 | ||||
7 | . // Tomsk State Pedagogical University Bulletin. 1999. Issue 7 (16). P. 24-27 . | 895 | ||||
8 | Beginning from water systems and soils, all series connection links of this chain can be viewed as deposition or oozing mediums in relation to toxic devices or linkages, in which there is a dynamic balance realized in system uptake - eduction or uptake - accumulation -eduction. | 956 | ||||
9 | The soil is traditionally considered as a main source of microelements in the plants, but it is established, that vegetative cover accumulates the considerable part of the fallen dust out of atmosphere, that is why along with the mechanical hoid-up of the aerosols by leaves of the plants it is possible out-rooted penetrance of the big ammountof the vitaly important microelements and heavy metals. The source of the atmospheric microelements can be both Earth's and space substance. | 994 | ||||
10 | The electrochemical properties of sulfur and sulfide mercury en aqueous solvents have been investigated by using voltammetry on mercufy-fiim electrode. The peak of reduction of sulfide mercury in 1 M NaOH and 1 M Na2SO4 is observed at -0.82 ± 0.03 V and 0.80 ± to the reduction of ± 0.01V, the second peak polysulfide ions | 967 | ||||
11 | A method is described for the determination of suifide-ions by cathodic stripping voltammetry at mercury film electrode in 1 M NaOH. The peak height observed at –0,76 ± 0,96 V (saturated silver – chloride electrode) was proportional to the concentration of suifide-ions between 2·10-6 and 1·10-4 M. Tiosulfate - ions do not prevent the determination of sulfide – ions | 1049 | ||||
12 | Different approaches to definition of the concept are considered in the article. Various classifications of the scientific information are also given. The requirements to scientific information are characterized. The basic stages of transformation of the scientific information in educational are considered. Keywords: information, educational information, requirements to the scientific information, and preparation of the scientific information for educational process. | 928 | ||||
13 | Classification of models of structuration of the educational information is considered in the article. The frame model is described in detail. The use of the given model in practical works in chemistry is proved. Keywords: structuration of the educational information, structuration model, frame | 1097 | ||||
14 | The basic forms of presentation of chemical information were considered in this paper: the specification of educational elements, the count, frame, reference notes, structural and logic scheme. The characteristics of each form, examples and tips on using these forms in the learning process were given. Keywords: specification of educational elements, the count, frame, reference notes, structural and logic scheme | 947 | ||||
15 | The use of the case-technologies in the study of discipline “Methods of teaching chemistry” has been studied in a competence-based approach in higher school. Definition of case-situations on methods of teaching chemistry, distinctive features of training and control cases have been proposed. Differences between these cases to the destination and purpose of use in the learning process, the nature of the questions and answers to them, the estimation, the use of additional information about your answers have been identified. Educational cases are designed to develop skills of students to solve the problems unconventionally, the answers to them require a search for additional information, these cases do not have a rigid system of evaluation. The control case studies provide unequivocal answers, different approaches to evaluation. When answering the questions to cases, the student uses only existing knowledge. The examples of case-situations on how to conduct laboratory work at school and the answers to them were given. Keywords: competence, case-technologies, case-situations on methods of teaching chemistry, the teaching case, the controlling case | 944 | ||||
16 | The use of situational problems in the study of methods of teaching chemistry at a pedagogical university is described, and their significance in training of students for professional activity is characterized. The definition and the structure of the situational task is given, its components are singled out. Specific features of differentiated questions to the texts of situational tasks and their use in the training process is described, the character of the cognitive activity of the students when performing different tasks are singled out, specific examples of tasks are given. The availability of the content of the tasks for students, the features of the choice of differentiated tasks, the conditions for their fulfillment, as well as the students’ interest in creative cognitive activity are revealed on the basis of the questionnaire. The tasks of the first level are aimed at reproduction of theoretical knowledge, in the process of their implementation, the reproductive nature of students’ activity prevails.. These tasks are used to repeat theoretical material in practical exercises, seminars or remotely. They contribute to the formation of practical skills and the skills in drawing up summaries of lessons and didactic materials. Tasks of the second level of complexity allow you to integrate materials from different educational areas, which are necessary to solve certain situations. When performing such tasks, the partial search character of students’ cognitive activity predominates and practical skills and skills in developing and compiling methodological materials are improved. Tasks of the third level of complexity develop the ability to analyze information, generalize and systematize it, draw conclusions based on the initial data and justify them. At the same time, there is a deepening and further development of the skills in developing didactic materials, taking into account modern requirements for school chemical education. When performing such tasks, the search activity, creative and authorial approach dominates and the originality in their solution is manifested. Keywords: competence approach, methods of chemistry teaching, situational task, task structure, questions of the first, second and third levels of complexity to the content of the situational tasks, specific features of differentiated tasks, questioning of students | 1119 |