Preferable, the students’ assessment includes both a theoretical test and a practical assignment. When working with a unit of this type, it is important that its associated assessment is in line with the stated learning objectives, and of course also with relevant policies. It is also important that the pupils are informed at the beginning of the unit about how they are to report on their work and how they are to be assessed. Assessment can also take place in the field when the students are interacting as a group.