Using cubes in development of geoemtrical image in primary education

В статье рассматриваются факторы развития пространственного образа учеников в начальных школах = The article is dealing with factors in the development of spatial image of pupils at elementary schools. It presents them in sequence of geometrical ideas creation about cube and buildings from cubes. Attention is focused on math problems of different levels of difficulty that future teachers can apply in school practice