Borderland is a category which has been attributed many theoretical solutions – not only in the field of philosophy but also in sociology or pedagogy. Due to the presented analyses, the category of borderland in the territorial approach has been applied in this study – borderland is treated here as a territory, common space in which two or more ethnic-cultural groups function. The forms of coexistence are shaped through being side by side – by mutual contacts. This permeating of each other and the melting of cultures make borderland a very specific territory, a space where some norms can be worked out which determine the life near each other despite the noticed differences. The relations in the borderland depend on many factors. Some are associated with individual undertakings, some are initiated, promoted and implemented by institutions, organizations, associations and societies. The transfrontier collaboration in the Polish-Czech borderland is developing intensively. In the presented text, some analyses are presented of the obtained results of the studies conducted among teachers. The author focused on answering the question whether the respondents engage in transfrontier activities and how they evaluate them.