The purpose of this study is to develop a conceptual model of teaching practicum and to justify it. To achieve this, the researchers established a conceptual model of teaching practicum in consideration of prior research on teaching practicum and extracted its sub-elements. Then, we devised a conceptual model of teaching practicum(proposal) with extracted elements. In addition, the researchers conducted an expert opinion survey of 20 experts to verify the feasibility of the proposed the conceptual model of teaching practicum and its sub-elements. According to the analysis, the values for the nine elements and definitions that form the conceptual model of teaching practicum were all higher than the reference value(CVR>0.42). Therefore, it was found that the definition of each dimension and element of the conceptual model of teaching practicum developed in this study was reasonable. In addition, an analysis of factors at each dimension with an average of 4.0 or higher and a standard deviation of less than 1.0 showed that the opinions of the experts agreed on all factors. This confirms the validity of each elements. Therefore, this study succeeded in verifying the sub-elements of the conceptual model of teaching practicum and the definition of each element. As a result, it is meaningful that the validity of the the conceptual model of teaching practicum has increased the development of the the conceptual model of teaching practicum and its applicability to the field.