This study aims to identify the students’ acceptance of using a Flipped STEM classroom (FSC) Engineering-based module. The study sample consisted of 120 students from the seventh grade in a private school in Jordan. A questionnaire was employed in this study. The unified theory of acceptance and use of technology (UTAUT) was used in this study to determine the extent of students' acceptance of the FSC engineering-based module. The results showed that the students’ acceptance to use the FSC engineering-based module was high. the results showed that students had more level of acceptance for performance expectancy and effort expectancy dimensions. The study recommends submitting the FSC engineering-based module for enhancing problem-solving skills for elementary school students in STEM subjects.