The purpose of the study was to determine the views of science and elementary mathematics teachers about the interdisciplinary approach. In determining the sample of the research conducted using phenomenology design of the qualitative research designs, criterion sampling method was used, and semi-structured interviews were carried out with sixteen teachers in total, eight of whom were science teachers and eight were elementary mathematics teachers, who had different experience period and worked at schools and in the cities with different characteristics. Content analysis approach was used to analyze the collected data. The triangulation technique ensuring the internal validity and reliability was used through research. As a result of the analyses carried out, it was concluded that the teachers had expressed opinions under the themes of "definitions, information, the elements taken into consideration, associated courses and subjects, collaboration with other course teachers, the advantages and limitations of the approach and suggestions for the approach regarding interdisplinary approach". Recommendations for the current practices and future studies were developed in this direction.