The purpose of this study was to investigate 42 people Preliminary Early Childhood Teacher who take science courses during the early childhood teacher education at J city university. and As a research method, 10 groups of 5 ~ 6 students were divided into 8 groups for 8 weeks. The purpose of this study is to investigate the experiences of pre - service early childhood teachers and their educational implications through cooperative classroom research. The purpose of this study is to provide the basic data for the transformation of teaching learning paradigm in teacher education. The results of this study are as follows, The results of this study showed that Preliminary Early Childhood teachers showed positive perceptions about early childhood science education and helped to establish a foundation for early childhood science education and to have a positive effect on science teaching.