Textbook. In two parts . - M. : Education, 2011. — 112 s. : il. — (School of Russia) . The book presents the material, corresponding to the program and allowing to form a system of mathematical knowledge in younger schoolchildren , necessary to continue the study of mathematics , Presents a system of educational tasks, aimed at the formation and consistent development of universal training actions , Spatial Imagination and Mathematical Speech of Students . Many assignments contain an indicative framework for action, which allows students to set learning goals on their own, find and use the necessary tools and ways to achieve them, monitor and evaluate the progress and results of their own activities.