Development of logical thinking . Preparing for school . - M. : Karapuz, 2006. — 19 s. — (Karapuz). — ISBN 2147483647. The formation of a child's qualitatively new - logical thinking, or rather - its elements - is closely connected with the development of mental operations. In preschool age, they develop intensively and begin to act as ways of mental activity. All thought operations are based on analysis and synthesis. Preschooler compares elements by more numerous features than a child in early childhood. He notices even slight similarities between the external features of objects and expresses differences in words. Speech statements of the child contribute to the child's awareness of the course and result of the action, help to find ways to solve problems However, in fact, the child uses in his mental actions not words, but images.