@article{AMI_2016_46_a15, author = {Zsuzsa Nagy Lehock\'a and \"Od\"on Vancs\'o}, title = {Equivalence relation as a tool to create new structures. {How} could they be prepared and taught in schools?}, journal = {Annales mathematicae et informaticae}, pages = {251--264}, publisher = {mathdoc}, volume = {46}, year = {2016}, language = {en}, url = {http://geodesic.mathdoc.fr/item/AMI_2016_46_a15/} }