The aim of this study is to determine cognitive structure of preservice science teachers about "greenhouse effect" concept through Word Association Test (WAT) and the Write-Draw-Tell (WDT) Techniques..
Design & Methodology:The study was designed based on one of the qualitative research method named as phenomenology and analyzed with content analysis. Thiss tudy was conducted with 63 preservice science teachers in the 2019 -2020 academic year spring semester.Findings: According to findings obtained via WAT, the concepts hold by preservice science teachers in their cognitive structure about the "greenhouseeffect" have been corresponded to following four categories: "environment where greenhouse effect takes place", "causes of the greenhouse effect", "the results of greenhouse effect" and "misconceptions". According to the findings which had been obtained by the WDT technique, preservice teachers have the "unscientific-superficial (52.4%)", "misconceptions (30.2%)" and "scientific (15.9%) cognitive structure related to the concept. This study showed that preservice science teacher had some misconceptions and unscientific-superficial cognitive structure related with the greenhouseeffect.
Implications & Suggestions:According to the findings of this study, it is advised that courses including actual information and contemporary learning activities about environmental problems should be included in the science teacher education programs.