Exploratory geometry learning within cabri-based environment

SUMMARY Exploratory Geometry Learning within Cabri-Based Environment The purpose of this study is to improve computer based materials that help student learn geometry within Cabri based dynamic geometry environment and to evaluate learning products and student perceptions after applying to these materials in the real classroom environment. In general, study consists of four stages: project, improving, practice and evaluation. In the project stage, activities that will make geometry dynamic were prepared by using Cabri Geometry software. In addition, this software was translated into Turkish. In the improving stage, activities were introduced to six mathematics teachers in a course and in according to suggestions made by teachers, the activities were improved. In practice stage, activities carried out 40 students at 8th grade in two different school in Trabzon. During the lessons, students were observed by the method of 'teacher as researcher'. To determine students' perceptions, unstructured interviews were conducted with 10 students. In evaluation stage, the gathered date from worksheets, classroom observations and students and teacher interviews was analyzed by qualitative method. The date showed that, students could explore mathematical patterns under the geometrical construction by using improved activities with dynamic geometry software Cabri, these exploring activities caused mathematical confidence on students, some students had problems during the construction of their own knowledge due to deficiency of prior knowledge and mathematical language. Also, teachers had positive views about activities. This new technology should be introduced to teachers in terms of appropriate pedagogical principles in pre-service and in-service courses. Otherwise teacher will incline to use this technology in their traditional lessons as a supply material. Key Words: Dynamic Geometry, Learning Geometry, Exploratory Learning. vn