At our school there is no time for teaching entrepreneurship outside of the regular subject timetable.

That means we have 2 alternatives: a) either the teachers make room inside regular subject lessons, or b) the students must participate in practical enterpreneurship outside of school hours.

The advantage of option b) is that the students use the subjects where they most want to advance and specialize to both specialize and work with enterpreneurship. This is the most popular and reasonable way of doing enterprise education; the students are mentored by a teacher, but they themselves take responsibility for assignments that can become, or already are, youth enterprise projects.