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USB-microscope in chemistry and geology - a toy for geeks or a teaching aid?
Kopecký, Ondřej ; Šmejkal, Petr (advisor) ; Martínek, Václav (referee)
Microscopes are often used in school environments to give students insight into the microworld, whether (especially) to observe small objects in biology, but also in chemistry or geology. A stereoscopic microscope, in other words a binocular, is usually used to observe opaque objects. These devices make it possible to examine larger, opaque and three-dimensional samples. In recent decades, the so-called USB-microscope has appeared on the market and in technical fields, which could be an alternative to binoculars due to its properties such as durability and small device dimensions. However, these devices are not widely used in teaching yet, but the question is whether their use would not cause difficulties or be less illustrative for teaching, eg due to the limited field of view of the USB-microscope compared to binolup. In this regard, the work deals with the observation of binoculars and USB-microscope in terms of motivation of students in working with the device and also tries to evaluate the user experience of students in working with these devices. For this purpose, a teaching activity was prepared for working with a binolup and a USB-microscope, in which students used a binolup and a USB-microscope to determine the crystallographic system, their chemical composition and the associated shape of...
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