STEM in Primary school - between theory and practice STEM in Primary school - between theory and practice Year Tenth (2022) / Issue First Year Tenth (2022) / Issue First Author(s): Ivelina Miteva-Belcheva, Mariya Zhelyazkova Author(s): Ivelina Miteva-Belcheva Mariya Zhelyazkova DOI: 10.15547/PF.2022.004 Read the article