SUMMARY
The paper presents the theoretical substantiation of interactive approach as one of the leading in the technology of developmental education while preparing the informatics lessons. There were considered psychological and pedagogical aspects in formation of creative, informative competent person. Effective ways and methods of formation of information-communication environment through the use of interactive technologies and multimedia training are determined, as well as developed types of interactive lessons and exercises in the program SMART Notebook, aimed at creating interest and increasing cognitive activity of students to the subject. It has been done an experimental verification of efficiency of the developed system of interactive forms of lessons on informatics.