This study evaluated how the process of teaching scientific methodology occurs in technical courses in integrated high schools. The qualitative case study was conducted through documentary analysis (based on regulations and pedagogical projects) and semi-structured interviews with teachers (n=7), coordinators (n=3), and students (n=16) of the integrated technical courses in Agriculture, Computer Science for the Internet, and Environmental Studies. The teachers and coordinators have academic backgrounds and an undergraduate degree in their specific areas, and all have a master's or doctorate degree. The students were enrolled in the 2nd or 3rd grade of high school and have already taken the methodology course. The research included an analysis of the pedagogical projects of technical courses and teaching plans of participating teachers. The interview data were analyzed using Bardin's content analysis technique. The results of the study showed that the scientific methodology teacher in high school is still in training. The students recognized the importance of gaining knowledge of scientific research for their academic and professional education, but reported difficulties in achieving it. Teachers also recognized these difficulties and use various teaching strategies to make student learning and productivity more flexible.