Mersin Üniversitesi Eğitim Fakültesi Dergisi, vol.20, no.2, pp.299-324, 2024 (Peer-Reviewed Journal)
The aim of this study is to examine teachers' views on the use of GeoGebra software in the development of
students' spatial visualization skills in the subject of "View of Objects from Different Directions" at the seventh grade
level. The research was designed using simultaneous triangulation design, one of the mixed research techniques. The
study group was selected by purposeful sampling method. The study group consisted of 5 secondary school mathematics
teachers who actively used GeoGebra software in their classes during the 2021-2022 academic year in the İskenderun
district of Hatay province, and 26 students from the schools where these teachers work, including 13 students in the
experimental group who learned with GeoGebra and 13 students in the control group who did not. The data were
collected through a semi-structured interview form and a spatial visualization test and analyzed by content analysis and
independent samples t-test. As a result of the interviews with the teachers, it is seen that the GeoGebra application has
advantages such as providing students with three-dimensional thinking skills, making students interested and attentive
to the lesson, and supporting their active participation in the lesson, but it also has disadvantages such as not being
suitable for every acquisition, a lack of technological facilities, and insufficient course time. It was concluded that for the
development of spatial visualization skills, teachers conducted necessary activities and studies in the classroom and
mostly used GeoGebra application. In the spatial visualization test, a significant difference was found between the test
scores of the students in the experimental and control groups, and it was also figured out that this difference was in favor
of the experimental group.