Effectiveness of a Professional Support Program Related to Project Based Instruction (PBI) on Science and Technology Teachers' Needs [Fen ve Teknoloji Öǧretmenleri İçin Geliştirilen Proje Tabanli{dotless} Öǧretim Yöntemi (PTÖY) Konulu Bir Destek Programi{dotless}ni{dotless}n Öǧretmenlerin İhtiyaçlari{dotless}ni{dotless} Giderme Durumlari{dotless}ni{dotless}n İncelenmesi]

Despite the benefits of project-based instruction (pbi) provided to students and teachers,it is stated that it isn't used effectively in science and technology classrooms. in this context,various models to support teachers effectively has been developed and tested. one of them is teachers' continuous professional development (cpd) model. in this study,it is aimed to uncover the effects of a support program,which was developed according to the cpd in order to contribute science and technology teachers in the enacting of pbi,on the meeting the needs of the teachers. semi-structured interviews which took 30 minutes in average were done with the 14 teachers after the first stage and 5 teachers after the second stage of the support program. it is found out that the supporting program is effective for meeting the needs of science and technology teachers related to pbi (project preparation,leading project preparation,finding project samples,motivating students,getting feedbacks from the academics and expanding subject field knowledge).