In my school, on upper secondary school there is a long experience on doing classes at industry sites. This classes involve the next few steps:
- Meeting with all teachers participating the class to match wath preparation should be made with the pupils: Concepts, security, research;
- Elaboration of a field road notebook for the students, use to follow the explanations and to take notes. For this we often ask for the industry collaboration for providing data, information, pictures and schemes;
- The class on site is a all day long visit and workshop day, with on class time, field and visit time to the site of the industry;
- After the visit, pupils have to do a report on the class, as a report of the class, a scientific poster about the industry process, etc.

Examples of industry sites where we have done this kind of classes:

- Ammoniac factory, before 2009 (this factory has been shut down at the end of 2009);
- Bear producing plant;
- Glass bottles producing industry;
- Fertilizer producing plant;
- Petrochemical plant;
- Live Science centre on astronomy;
- Air force base;
- Naval base;
- Electricity producing dam;
- Gas and coal Thermoelectric producing plant.

This classes have been a success on raising interest and motivation for STEM but since transport cost are very high, we can only organize one or two of this classes a year.