The of Elkonin-Davydov's development through instruction system encourages children to seek new ways of doing school tasks, while critically appraising the outcome of each attempt. This seeking activity is the opposite to passivity, stereotyped behaviour (reproduction of habitual actions) and chaotic behaviour (trials not accompanied by outcome analysis). As an experimental study has demonstrated, even in everyday out-of-school situations children who studied according to the development through instruction curriculum are more inclined to seeking activity and less - to stereotyped behaviour than traditionally taught children. The findings prove that organization of instruction significantly affects children's general attitude to various out-of- school situations.