Apart from LMS, properly structured and didactically adapted educational texts, referred to as electronic distance
learning materials (Paulsen, 2003, Šedá 2010, Kopecký 2006) contribute significantly to the implementation of elearning.
To get a clear and permanent definition of the term, it is necessary to focus on the structure and the
arrangement of individual elements that such a teaching material is composed of. Study materials for distance
learning, in both classical form and the form of e-learning, have gradually evolved from textbooks (Möhlenbrock,
1982). In terms of the text structure, a classical textbook is composed of two basic components (Pr