Akpaeva А.Б., Lebedeva Л.А., and Мynzhasarova М.Ж. 2021. “ABOUT THE PROBLEM OF STUDYING DIFFICULT TOPICS IN THE COURSE OF MATHEMATICS 4 CLASSES OF UPDATED EDUCATION CONTENTS OF THE REPUBLIC OF KAZAKHSTAN”. Bulletin of Abai KazNPU. Series of Physical and Mathematical Sciences 69 (1). Almaty, Kazakhstan:18-24. https://doi.org/10.51889/2020-1.1728-7901.03.