The purpose of the research is to determine ways in order to train teachers for the implementation of a universal design in educational activities at secondary education institutions. 378 teachers (Ukraine) on the Google-forms platform took part in the survey. It has been highlighted that the basic differences between the theory and practice of the implementation of inclusion and universal design are as follows: inclusion is more difficult to apply in practice; design needs clarification of some practical concepts. It has been determined that the most common methods of involving into the implementation of universal design are manifestation of enthusiasm, providing examples and feedback to students; representation through class discussions, laboratory experience and images; group discussions in the classroom, projects, workshops and tests. It has been noted that UD can be used to create educational applications in order to adapt the learning space to the needs of the student (elements of physical spaces and instructions in order to make them more accessible, useful, and comprehensive).