TY JOUR TI Using a light table for painting with sand as a means of creative expression of preschool children in additional education KW playing with sand KW light table KW sand drawing KW developing and teaching activities KW personal development KW additional education JO Journal of Pedagogical Studies AU Sumatohina, V.A. AU Ivanova, I.V. PY 2022 IS 7 PB INFRA-M Academic Publishing LLC.