The article is devoted to the problem of using digital educational resources (COR) for the development of cognitive interests of younger students in extracurricular activities. Using the methods of theoretical analysis of scientific sources, questionnaires, comparison of digital educational resources located on educational Internet portals, websites and platforms, the author in her studies identifies necessary requirements for a modern teacher – the ability to navigate and use digital educational resources. The article discusses the features of primary school children of generation A (alpha). The author made an attempt to define the concept of “digital educational resources” in relation to extracurricular activities. The CORs contained in twenty-four educational Internet portals, sites and platforms were studied and the possibility of their use for the development of cognitive interests of younger students in extracurricular activities was analyzed. Parents were surveyed in order to establish their opinion about the use of Internet resources. The attitude of teachers to the use of COR in extracurricular work with younger students is determined. The conclusion is made that it is necessary to use the COR in the extracurricular activities of primary schoolchildren for developing cognitive interests. The author also noted that the number of such resources is insufficient.