Abstract

The Author had already published that the scientific consideration composed of 13 constructional elements, and each element has peculier step of development, and then showed them from the 1st year of primary school to the 3rd year of lower secondary school, and related them to the steps of the growth that Jean Piaget had studied. But when we had been proceeding our research, we felt the need of the research for the steps of infant. Then in this essay we tried to show the relation for development between each constractional element, and J. Piaget's research. But this research is only beginning and needs the correction in future. It is reliable that this results supplr contributions to the science teaching in infant education or in special education at least.