The article focuses on a notebook which belonged to Imene Guimarães, a student of professor Alda Lodi (1898-2002) in Escola de Aperfeiçoamento, an institution of continuing education for teachers created by educational reforms promoted by the government of the state of Minas Gerais in 1927-1928. Alda Lodi taught Methodology of Arithmetic in this institution. Considering the relevance, potentialities and limitations of school notebooks as a source for the history of education, the records of this notebook of 1932 are studied and compared with other materials for the purpose of an initial understanding of the modes of appropriation of proposals for renovating the teaching of Arithmetic according to the ideas associated to active school in Minas Gerais.
school notebooks; methodology of Arithmetic; Escola de Aperfeiçoamento de Minas Gerais; Alda Lodi; history of mathematics education in Brazil