A stable financial sector creates economic development. Speculative actions in financial markets cause disturbances and are an indicator of economic instability. The growth of a modern market economy more than two centuries ago is interconnected with the growth of the financial system. The averment that there is a connection between the growth of the financial and real sectors of the economy is as old as economics science. A developed financial system encourages competition, expands the market, and increases the efficiency of financial institutions. The depth and the breadth of financial markets are growing, which are transmission to the performance and structure of the economy. Through linking savings and investments, the financial system controls and manages the risks that are characteristic of financial operations and facilitates the interaction of production and consumption. The financial systems of transition countries are not sufficiently developed, so this paper aims to point out the interconnectedness and impact of the financial system on macroeconomic stability.

Among the didactic tools used in working with preschool children, one of the most prevalent and beloved is the cube. The cube is a favorite toy for children of all ages, as it offers countless possibilities for play. Its significance is reflected in its wide application in games for implementing activities of various content, and in arousing children's interest in developing and acquiring concepts that are being taught. Playing with cubes encourages children to be active participants and collaborators with adults in activities to the extent that the cube facilitates the discovery, deeper experience, and understanding of what is being learned. This paper presents various aspects of the cube as a concept; a geometric shape; a play prop; and a powerful didactic tool in the realization of preschool mathematical education.