1. Assonova N.V. O nematematicheskoi sostavlyayushchei ponyatiya "matematicheskoe razvitie mladshego shkol'nika" [About the Non-mathematical Component of the Conception of ”Mathematical Development of a Primary School Student”]. Aktual'nye voprosy professional'noi podgotovki sovremennogo uchitelya nachal'noi shkoly [Current issues of professional training of a modern primary school teacher], 2021, no. 8, pp. 3–10. (In Russ.).
2. Atakhanov R. Matematicheskoe myshlenie i metodiki opredeleniya urovnei ego razvitiya [Mathematical thinking and methods of determining the levels of its development]. Moscow – Riga, 2000. 208 p. (In Russ.).
3. Bolotov V.A. K voprosam o reforme pedagogicheskogo obrazovaniya [To the Questions on the Reform of Pedagogical Education]. Psikhologicheskaya nauka i obrazovanie = Psychological Science and Education, 2014, no. 3, pp. 32–40. (In Russ.).
4. Davydov V.V. Vidy obobshcheniya v obuchenii [Types of generalization in teaching]. Moscow: Pedagogicheskoe obshchestvo Rossii, 2000. 480 p. (In Russ.).
5. Davydov V.V. Teoriya razvivayushchego obucheniya [Theory of developmental learning]. Moscow: Intor, 1996. 544 p. (In Russ.).