AU - Kasti, Houssam. AB - Integrating technology in education has not been and still is not an easy task. Teachers’ adoption of technology in their teaching is even more problematic. The availability of technology added another challenge to educators, teachers, parents as well as students. This article is one part of an ongoing PhD thesis which is a multiple case study aiming to study in depth the effect of a GeoGebra (a free mathematics software) intervention on secondary mathematics teachers -teaching the Lebanese curriculum in English- practices regarding GeoGebra integration in their teaching. The type of the study is Design-Based Research that stresses on working closely with practitioners in collaborative and iterative manner in the real context with the aim of producing principles that add to theory and practice. Results showed increase in teachers’ extent of use of GeoGebra in their teaching especially in adopting a student-centered approach. (Published Abstract) http://search.shamaa.org/abstract_en.gif ID - 124982 OP - pp. 240-254 T1 - Effect of geogebra professional development on inservice secondary mathematics teachers’ technology integration level [Article] UL - 1 http://search.shamaa.org/fulltext.gif http://search.shamaa.org/PDF/Articles/LEBRp/RpNo27Y2017/rp_2017-n27_240-254.pdf Full text (PDF)