TY JOUR TI Peculiarities of Teaching Primary schoolchildren with Intellectual Disabilities to Compare Objects by Length KW primary schoolchild with intellectual disabilities; socialization; study of the educational characteristics of children with intellectual disabilities; development of mathematical skills; development of special methods and techniques for comparing objects by length JO Primary Education AU Vendina, A.A. AU Kirichek, K.A. PY 2025 IS 13 PB INFRA-M Academic Publishing LLC.