programming; teaching; recursion.

Structured approach to design and creation of program supposes division of problems into subtasks. Their solutions are subsequently unified as a whole into solved problem. For particular subtasks are used subroutines (procedures and functions). Today this approach is substituted by object approach. Particular classes have defined methods for data processing here, which are subroutines (procedures and functions) again. The aim of this paper is to present possible approaches to instruction of fundamentals of algorithmization and programming. We are focused on programming creation and methods of procedure call. For explanation and illustration of processes, which are running during procedure call, we use their recursive definitions.