The article expresses the position of the authors that role-playing games in foreign language classes are not just collective entertainment, but act as an effective way to solve a wide variety of training tasks — from the development of elementary speech skills to the formation of skills conducting an independent conversation. Playful activity helps not only to intensify the speech-thinking activity of students, with its with the help of the teacher recreates the atmosphere of communication, close to real communication situation, introduces students to the realities socio-cultural environment in which they are located, which is undoubtedly positively affects the adaptation of students to stay at border.
The paper describes a methodological system of testing and diagnosing technogenic waste to create new construction composites. The converter slag structure is shown both in the form of lump materials and on the nanoscale. The results of determining the mineralogical composition of converter slags are also presented. Petrographic research of slags and their X-ray diffraction analysis are conducted with the results shown. Special attention is paid to the atomic force microscopy method. It shows that the composing minerals have unique features of the surface topography with the indication of averaged statistical data of characteristics. In further research, this experience can significantly ease the task of determining the bi-calcium silicate in the structure of other types of metallurgical slags. The information about the morphological features of the structure of various minerals will help to use this method as independent in determining the mineralogical composition of the observed materials.
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