Polytechnic education has been newly embedded in the revised Framework Educational Programme for Basic Education as a key component in developing pupils' competences for the 21st century. In this context, new opportunities are emerging in school practice for the integration of digital technologies, particularly 3D printing, which supports creativity, technical thinking, and practical skills.

This paper focuses on connecting the principles of STEAM education (Science, Technology, Engineering, Arts, Mathematics) with the use of 3D printing in polytechnic education at the primary school level. The aim was to design and pilot a set of educational activities that foster interdisciplinary learning, the development of digital competences, and active student engagement. These activities were implemented and tested in real school settings, with their impact assessed through feedback from both teachers and pupils.

Based on the results of the pilot implementation, the paper formulates practical recommendations for educators on how to effectively integrate 3D printing into teaching, even in schools with limited technical resources.

Keywords: 3D printing, STEAM, polytechnic education, primary school, educational activities, digital competences, curriculum, educational technology, creativity, teaching and learning.