The article is dedicated to theoretical and practical insights into the use of information technologies (IT) in the process of STEM subjects education, which includes using innovative methods in the Latvian educational context. It analyses the significance of IT application in educational process, functional capabilities of the use of educational portals and presents the theoretical model of the realization of IT in STEM education. The article introduces to empirical research in order to present the approach of secondary education learners to the use of open education resources service system as the possibility of functional application of a separate IT unit in secondary education. Educational support for secondary teachers to use contemporary IT and open education resources provisions more effectively for their competence development are presented.