Özet:

The aim of this study is to study the levels of gabarit thinking of high school students. In this study based on the quality approach, one of the quality research approaches has been used the case study method. Clinical interviews were conducted as a quality data collection technique and the interviews were recorded in audio. This study was conducted with high school students (6th, 7th and 8th classes) studying in a state school located in a province of the West Black Sea Region. The study group consists of 12 students selected by the sample method for the purpose. In this context, the data collection tool has been used as a Cybersular Thought Level Detection Form (CDDTF), which consists of a total of eight questions, two in each of the four levels. Data analysis techniques are used in data analysis. The study found that students often answered the right questions for the 1st and 2nd levels, but had difficulty answering the 3rd and 4th levels. According to the results obtained from the study, all 12 students were able to give the right answers to the first and second questions in Level 1. Students saw the letters as an object in their answers to Level 1 and were able to finish the process without giving any numerical value to the letters in the questions. In the fourth question found in Level 2, some students tried to find the result by giving numerical values to the edges of the unknown equal length of the shape given. In the fifth and sixth questions concerning the third level of cybersecurity, the students of the seventh class were challenged. At this level the letters must be perceived as one-to-one unknown, while students have turned to trade by giving the letters numerical values. Some students who were unable to give the correct answers to the quarter-level questions in the required sufficiency, considering the explanations they made for the answer to the sixth question, they found the error that the collapse process would increase the value of the gabbage explanation.

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