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Investigation of Pre-Service Teachers' views on Chemistry Experiments Supported by Arduino Microcontroller in the Analytical Chemistry Laboratory
The Arduino microcontroller, which has emerged parallel to the development of technology and is very popular in recent times, is one of the tools that can be integrated with training. The Arduino microcontroller is a programmable electronic device that can be generated by recalling data after it is stored in a program and placing transistors, resistors and other circuitry on a few square millimeters square silicon CHIP. It can be used in various projects because it allows to use many sensors. The aim of the research is to reveal the views of pre-service science teachers towards chemistry experiments designed with integrated experimental sets of Arduino microcontroller, to compare them with observational results at the time of application and to report the results which will enhance the quality of the applications. This research was carried out as a semi-experimental design with pre-test / post-test control group in Analytical Chemistry II Course of Science Education Department at Dokuz Eylül University. Confirmatory approach based on experiments designed by microcontrollers were performed in the experimental group while only confirmatory approach-based experiments were performed in the control group. In the final of the application, interviews were made with selected (n: 8) students in the experimental group. In addition, observations were made through semi-structured observation form through two different observers during experimental application. Interview records and observation notes were evaluated by experts and analyzed by content analysis. As a result of the content analysis, the correspondence rate of the interview records was 74%. The results of the interviews and observations are presented in a table under the themes and codes. At the end of the study, it became clear that the subjects were easier to understand and more instructive, time saving, less error, and increased attention with this application. As a result of the observations during experimental applications, participants were more reluctant and hesitant to use the Arduino microcontroller in the first week, but they found that they were more enjoyable to work with, reasoned reasonably, and achieved correct results in the workplace.
Arduino, Chemistry Experiments, Interview