It is a subset of students understanding of the language of students, one of the components of educational information (AEB), which has acquired knowledge about students learning difficulties and misconceptions, and is an important type of knowledge that a teacher should possess. For this reason, in the study, the AEBs on the misconceptions of experienced chemistry teachers were examined. In this study designed according to case study model, data were gathered through observation, interview and lesson plan. The study included three chemistry teachers with more than 25 years of teaching experience. At the end of the study, experienced chemistry teachers; the nature of the misconceptions, their sources, and how they should be avoided, have been partially developed by the AEBs they have. As a result of the study of teachers effects on the development of AEBs, factors such as professional experience, post-graduate education and participation in workshops have also been found to have a relatively higher effect on the development of AEBs than on occupational experience. Google Translated

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In this study, it is investigated how the candidates of science teachers use the knowledge about gas presses while explaining the examples of daily life. The sample of the study consists of 33 students who read in the first year of science teacher education program. Five formative polling questions were used for the study. Students are asked to answer questions in small groups. Voice recordings were made during group discussions. The written answers given by the groups were classified into five categories: understanding, partially understood, misunderstanding, meaningless and missed, and the percentages were calculated. According to this, the sum of the scientifically expected and expected close answers to the questions of the students varies between 37.5% and 62.5%. The results show that students studying science teachers have problems in understanding gas concepts and associating these concepts with everyday events. Furthermore, in the descriptions of the students, the ideal gas equation was seen to be used in many places unnecessarily, and many concepts related to gas concepts were found to be misleading. Google Translated

In this study, some of the mereological publications in the philosophy of chemistry, which is about twenty-five years old, have been introduced and information about how to investigate some subjects of the subject in a mere manner has been presented. Mereology deriving from the word mereo, which means a Greek word, is a theory that examines the relation between the other parts of a whole and the parts as a whole. The origin of the Mereolojine dates back to the writings of Plato and Aristotle. In the study, a holistic approach to philosophy was adopted and theoretical analysis was made using descriptive scanning method. The problem of the research is how to apply the philosophical theories of chemistry to the theories of philosophy. In the discussion section, examples related to the approach to the science of chemistry teaching were given and some suggestions were made. Google Translated

Today, it is expected that students will be able to research, reach critical attitudes and produce ideas in the face of events. The PISA results are unfortunately not in any case open to any country, especially in the field of science. Our students seem to be quite unsuccessful, especially in high-ranking mental skills and problem solving questions. The learning environment and teaching materials need to be regulated to develop high-level skills. Scenario-based learning is one of the ways in which students develop problem-solving skills, enable life to move into a structured learning environment, and enable students to take an active role in the process. In the study, the impact of probabilistic scenarios supported by worksheets on the attitudes of 9th grade students to chemistry lessons, their worries related to their lack of using a laboratory, and their problem solving perceptions. It was found that the application made with the t-test did not bring any significant difference over any variables, but the improvements in observation and interviews were also noticed. Google Translated

In this paper, we present a demonstration for sublimation and we investigated the demonstration efficiency on students’ conceptual understanding of sublimation. Demonstration is considered an effective strategy to teach intangible concepts and a way to increase students’ enthusiasm for learning. We prepared a solution in which the surface tension was decreased using soap. This facilitated the formation of bubbles when dry ice was added. This provides a good environment for students to observation of sublimation. The demonstration improved students’ understanding of sublimation.