This study was aimed at describing the implementation of an apprenticeship for the second semester students held by the Faculty of Teacher, Training and Education, The University of Muhammadiyah Purwokerto, in two points: 1) the school condition, and 2) the students' understanding about the level of teacher professionalism. This study belonged to a qualitative method in which observation, questionnaire, and interview were used to gain the data. Three of nine State Junior High Schools in district Purwokerto with 45 second semester students did an apprenticeship there became the sample of this research. The observation and interview results showed that the schools have already been good at implementing their education visions and missions with good communication and interaction among the members of the schools. This fact supports the academic process in which teachers' professionalism can be developed. Moreover, the result of questionnaire showed that: 1) due to pedagogical competence, 43.6% respondents' teacher professionalism understanding belonged to good level and 30.7% of them were categorized into very good one. 2). In line with the students' understanding about professional competence, 52.6% respondent had good understanding while 60% of them were categorized very good. 3). The respondents' observation towards the teachers' personal competence revealed 15.9% of them stated that the teachers were good and 82.2% of them said that the teachers were very good at managing their personal competence. 4). The last result, 30.4% respondents mentioned that teachers were good at their social competence and 43.3% students said that the teachers were categorized very good at that point.