@ARTICLE {, title = {Návody v dôkazových úlohách}, author = {Závadová, Ivana}, journal = {Obzory matematiky, fyziky a informatiky}, year = {2003}, volume = {32}, number = {3}, pages = {11--23}, issn = {1335-4981}, abstract = {This article describes course and results of the research, which is related to the exploitation some kind of hint by solving proof-tasks. Author compared the effectiveness of the various kinds of hints and examined the fruitfulness of the high-school students in the course of solving analog task on the depend whether the hint at first task was enough or not. At the end of the article are shortly presented the targets of further research.}, }