The manual contains approximate calendar and thematic planning and development of mathematics lessons in the 2nd grade of the New Ukrainian School, compiled in accordance with the requirements of the new State Standard of Primary Education (2018) according to the Model Educational Program of the author's team under the leadership of O. Ya. Savchenko. The distribution of hours and the subject of the lessons correspond to the content of the textbook by N. P. Listopad (Mathematics: textbook for 2nd grade of general secondary education institutions. — K.: UOVC "Orion", 2019).