Teacher effectiveness (TE) is defined as a set of strategies implemented by the teacher to ensure the multidimensional development of students. This effectiveness has usually been evaluated by students, department heads or parents, but not by one of the fundamental elements of the educational process, the teacher. In the current study, the aim is to understand the self-assessed teaching effectiveness of Physical Education (PE) teachers in the Community of Extremadura, finding differences according to the gender of the teacher and the location of the center. Significant differences were found in the scores of both the items and the dimensions that make up the questionnaire, regarding variables such as gender and location of the center. Similarly, we found worrying values regarding the use of technology and the evaluation of teachers and students, so these findings should serve to open new lines of action to develop measures to improve teaching effectiveness depending on the educational context. Therefore, this research is considered a first step in the analysis of the perceptions and needs of the teaching job from the point of view of a PE teacher in Extremadura.