I remember reading in the introduction to a German translation of Euclid, that we ought to make beginners in geometry draw the figures before proceeding to demonstrate, for in this way they would already feel geometrical truth before the demonstration brought them complete knowledge.
Gogoan dut, Euklidesen alemanierazko itzulpen baten sarreran irakurri nuela, geometrian hasiberriei figura guztiak marrazten utzi behar zaiela, frogatzera iragan aurretik, horrela egia geometrikoa, frogapenek ezagutza osatua eman baino lehen, aldez aurretik sentituko zuketelako.