Özet:

 The aim of this research is to examine the opinions of high school students on the importance of prelearning, and the multiple representations in mathematics courses and using mathematics in real world and in different disciplines. This research was carried out with a survey model from descriptive research methods. Multiple-choice and open-ended questions have been prepared to determine the opinions of high school students in relation to mathematical connection. Whether or not there is any difference between students' opinions on mathematical connection according to their gender and their class was examined with a chi-square test. The qualitative data obtained from the opinions stated by the students about the mathematical connection were analyzed by descriptive analysis. As a result of the analysis of the data obtained, it was found that there was a significant difference in the opinions about the importance of the pre-learning in the mathematics courses according to the gender of the high school students. It was determined that there were significant differences in the opinions of the students regarding the use of mathematics in real world and in different disciplines, according to the class they are studying. According to high school students, while the relationship between mathematics and science is at a high level, they reported that there is little or no relationship between disciplines such as social sciences, arts, language literature and philosophy. This research was revealed that the perceptions of high school students regarding the connection within mathematics were positive and high but their perceptions of connection mathematics with real world and different disciplines were at a very low level.

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