The design of this teaching unit should follow a specific educational path:

• take into account cultural knowledge and language skills specific to the subject;

• highlight the glossary of new terms that will enrich the student’s lexical heritage;

• anticipate to the student, when posible and with the support teacher’s help, the topics that will be covered in class for everyone; Prior knowledge is very important to encourage attention and participation in class life, and to allow the strengthening of students’ previous knowledge.