Because of the importance of everyday-life applications, both researchers and teachers wish to emphasize on this issue in teaching science. Although they focused on the connecting science to students’ everyday-life experiences and taught their students in similar ways, they still fail to provide for students to apply their science knowledge to make sense of everyday situations (e.g. Jarman & McAleese, 1996). Thus, teaching strategy should be developed for teachers in order to provide students to make connection between their knowledge of science and related everyday situations. The present study tries to assess effectiveness of PDEODE teaching strategy on the degree to which students accept scientific concepts and use them for interpreting the phenomena in their everyday-life. In order to reach this, condensation concept was chosen among many science concepts since it is related to many everyday-life events. The study presented here mainly focused on phenomena about condensation on cool surfaces due to having seen many alternative conceptions in students’ minds (see e.g. Osborne & Cosgrove 1983; Bar & Travis 1991; Chang 1999; Gopal et al, 2004; Paik et al, 2004). These studies
show that students have several alternative conceptions and difficulties about this topic despite science teachers’ extensive efforts in teaching. The alternative conceptions identified by the previous researches are summarized in Table 1.