Invasive alien species represent a threat to ecology and economy and may can even cause diseases. To tackle this problem properly we have to warn, inform and educate wider public and raise awareness as well as teach children about this problem from the earliest stages of education. In my thesis I examined invasive alien plant species using reference books. Based on the handbook Invazivne tujerodne rastline pri pouku naravoslovja in biologije (Strgulc Krajšek and Bačič, 2013a), I prepared additional materials for biology teachers and natural sciences teachers, as well as for children in primary school, I also reviewed primary school websites and determined the degree of quality the teachers assign to invasive species for their lessons, if at any all. In addition I examined syllabuses covering all natural science subjects. On the bases of my findings I included the topic of invasive alien species in the syllabuses, and I, moreover, prepared a list of existing textbooks to help teaching
