Özet:

Abstract This research aims to reveal the opinions of secondary school mathematics teachers about Web 2.0 tools. In the study, which was designed according to the case study, one of the qualitative research methods, the participants were determined by using easily accessible case sampling, one of the purposeful sampling methods. The study group the research consisted of 8 mathematics teachers working in a school affiliated with the Ministry of National Education in the Gebze district of Kocaeli province in the 2021- 2022 academic year. The interview method was used in the data collection phase of the research. Content analysis, one of the qualitative data analysis techniques, was used to analyze the data obtained from the interviews. It has been observed that teachers have general knowledge about technology tools, but some teachers do not use them because they do not know and do not see themselves as sufficient. It is seen that Web 2.0 technology tools, unlike the traditional approach, increase the use of technology, offer a variety of teaching methods, save time, provide a fun environment and create more active learning. Teachers have learned that Web 2.0 technology tools provide reinforcement and permanent learning to strengthen the understanding of the subject, strengthen the lecture, and increase the student's participation in the lesson because they appeal to more than one sense and are fascinating. Technology tools allow students to embody these concepts because they have difficulty learning abstract concepts. They indicated that it enriched its content.

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