 In 1881, Ivan was admitted to Moscow School of Painting, Sculpture and Architecture.He graduated Alexander Kaminsky class of architecture with an honorary medal and a construction license in 1886 at the age of 19 – an exceptionally quick education by any standard (normally, it would take 10 to 15 years from admissions to professional license).In 1885–1888, Mashkov assisted Konstantin Bykovsky on Devichye Pole campus planning and August Weber on the completion of Polytechnical Museum in Moscow.