TY JOUR TI The Role and the Place of Geometry in the System of Mathematical School Olympiads KW olympiad KW geometry KW spatial thinking KW intramural and extramural tours. JO Scientific Research and Development. Socio-Humanitarian Research and Technology AU Keldibekova, A.O. AU Selivanova, N.S. PY 2019 IS 8 PB INFRA-M Academic Publishing LLC.