The investigation of submicroscopic level knowledge representation skills of future chemistry teachers

Анотація

It is known that in chemistry education, substances and processes can be described at three levels (Johnstone, 2007): macroscopic, submicroscopic and symbolic. İn chemistry education, the visual representation of objects plays a crucial role. The explanation of objects and the processes in which they are involved is typically carried out at the symbolic and submicroscopic levels.However, according to the literature, the explanation of objects and processes at the submicroscopic level creates significant challenges for students’ understanding (Chigheboroh and Greatest, 2007). One of the main reasons for this is the reluctance of teachers to incorporate such descriptions at this level into the teaching process. The primary aim of this research is to examine the accurate understanding of chemical processes at all levels (Kane and Gaulish, 2020). At the submicroscopic level, the size of atoms is the most prominent accept. Thus, the concept of atom size is directly related to concepts such as chemical bonding, the variation of properties in the periodic table, and ionization energy.(Your, Chitin, Gepan, 2013). In a broader, the concepts related to the geometry of molecules at the submicroscopic level are included (Ibrahim and Arun, 2019).