Özet:

This research was conducted in order to find out the opinions of preservice mathematics teachers regarding the use of dynamic mathematics software in computer assisted mathematics instruction course. The research, which was designed as a case study, was conducted with 56 preservice teachers who were fourthyear students at the Department of Mathematics Education Program in two state universities located in Turkey. In the research that was conducted with the preservice teachers in 48 course hours, GeoGebra, which is dynamic mathematics software, was taught and students were shown how to prepare the materials that can be used in computer assisted mathematics instruction. Each preservice teacher was enabled to form mathematical concepts, construction of which was shown, on their own computers. The data were obtained via a opinion form that was composed of open-ended questions. In view of data analysis, it was found that the preservice teachers emphasized such properties of the use of dynamic mathematics software as visualization, facilitation of understanding, maintaining retention, providing concretization in computer assisted mathematics instruction course. It was observed that the preservice teachers highlighted the inadequacy of using computers and time-consuming material preparation as difficulties in using dynamic mathematics software in computer assisted mathematics instruction course

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