Özet:

The purpose of this study is to investigate the effect of the TPACK based blended learning environment on pre-service science teachers� (PSTs�) TPACK and classroom practices involving the topics of day-night, and seasons. This study was carried out upon 37 fourth grade PSTs in Science Teacher Education Program. In this study based on one group pretest-posttest design, individual semi-structured interview based on vignette for the PSTs� TPACK, and field notes, video records and observation protocols for the PSTs� classroom practices were used as data collection tools. According to the findings of this study, it was found that there was a significant difference in favor of the post-test results between the pre-test and post-test about PSTs� TPACK and classroom practices involving the topics of day-night, and seasons. The results indicated that TPACK-based blended learning environment made important contribution to the development of PSTs� TPACK and classroom practices.

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