Szanyi, Gyöngyi2024-09-042024-09-042015-12-01Teaching Mathematics and Computer Science, Vol. 13 No. 2 (2015) , 249-2661589-7389https://hdl.handle.net/2437/379788Function is a basic concept of mathematics, in particular, mathematical analysis. After an analysis of the function concept development process, I propose a model of rule following and rule recognition skills development that combines features of the van Hiele levels and the levels of language about function [11]. Using this model I investigate students' rule following and rule recognition skills from the viewpoint of the preparation for the function concept of sixth grade students (12-13 years old) in the Ukrainian and Hungarian education system.application/pdffunction conceptUkrainian and Hungarian secondary educationfeatures of van Hiele levelsrule following and rule recognition skillsfolyóiratcikkOpen AccessGyöngyi Szanyihttps://doi.org/10.5485/TMCS.2015.0401Teaching Mathematics and Computer Science213Teach. Math. Comp. Sci.2676-8364