In this article authors prove relevance of a problem of scientific search and creation of new technologies of development of informative activity since the earliest childhood in the light of modern requirements of information society, states the position in relation to a problem of development of informative activity by means of reflexive technologies. Authors offer the complete educational concept in which the reflection is considered as the certain universal mechanism operating throughout all development of the personality as means and a method of development of informative activity, since the early childhood. The appeal to a periodization of mental development allowed the researcher to define hypothetically the senzitivny periods in development of informative activity in close connection with a reflection, to describe its originality and respectively to define problems of development and a reflection role in this process.