@ARTICLE {, title = {Hrozny problémů ve školské matematice (1. část)}, author = {Kopka, Jan}, journal = {Obzory matematiky, fyziky a informatiky}, year = {2020}, volume = {49}, number = {4}, pages = {9--21}, issn = {1335-4981}, abstract = {We describe a teaching method called “The Creation of Clusters of Problems.” The method has two phases. First, we set up a basic problem in the given area, which we then solve together with the students. In the next phase we create similar problems. The solutions of these problems are usually not much different from the solution to the basic problem from Phase One. It is advisable to have students participate both in creating new problems and in solving them. The theoretical part is completed by creating clusters usable in school mathematics and also by methodical notes.}, }