Based on the analysis of interviews, this article describes the schooling experience of girls who have chosen non-traditional options such as technology, civil engineering or thermal engineering. The subject is tackled from various angles: the motives behind their choice; their relations with the boys they study with: from the favorable dispositions of a few to the resistance of the majority, as shown by sexist jokes as well as their overprotection, isolation or relegation to low-ranking tasks in the workshops; relations with the professors, helpful in some cases, more or less discriminatory in other cases; finally, their professional projects, some girls hoping to get a job related to their training, others drawing pessimistic conclusions from their internships as to their professional insertion, and therefore envisaging a more or less complete reorientation. The division of territories that turns technical and industrial jobs into male territories is still vivid and turns female presence into an everyday struggle.