The textbook was developed in accordance with the Federal State Educational Standard for Primary General Education. The development of the ability to plan educational actions, work for the result is the implementation of project activities provided for in the heading "Our projects." In the methodological apparatus of each topic there are tasks for the implementation of control and evaluation activities. At the end of each section there are tasks under the heading "Let's check yourself and evaluate your achievements," which allow students to conclude that they have achieved the goals and objectives set at the beginning of the section.