This study examines gender differences and the teacher's profession in teachers' use of open learning resources. It aims to help understanding the way Open Educational Resources (OER) should be assimilated in the education system. This study was conducted in a qualitative research approach that checked correlations between variables. The research participants are 76 teachers from various schools, about half of them from a vocational school chain and the other half are from academic schools. The results show that teachers of technological subjects use open educational resources more than teachers of humanities do. Gender differences were found in the use of open learning resources. Among male teachers there was greater use of open learning resources than among female teachers.