The presentation, use, operationalization of the terminological lexicon in the curricular documents (textbooks, guides, curricula by disciplines, etc.), but also its capitalization within the classes will be the investigative objective of this article. The exact understanding and knowledge of words and meanings, so many and varied, is of interest to both specialists (semantics, lexicographers, terminologists) and teachers from all school subjects, especially with the implementation of the curriculum - 2020, which prioritizes the formation of communication skills, has become an urgent necessity for every individual, regardless of his professional training or social condition. This didactic approach can be achieved through mind maps which, today, are about to become a universal tool for pupils / students, in order to assimilate and manage a huge amount of information, which they are forced to absorb every day.