\input zb-basic \input zb-matheduc \iteman{ZMATH 2012e.00178} \itemau{Knijnik, Gelsa; Wanderer, Fernanda; de Oliveira, Claudio Jos\'e} \itemti{Cultural differences, oral mathematics, and calculators in a teacher training course of the Brazilian landless movement.} \itemso{Forgasz, Helen (ed.) et al., Towards equity in mathematics education. Gender, culture, and diversity. Berlin: Springer (ISBN 978-3-642-27701-6/hbk; 978-3-642-27702-3/ebook). Advances in Mathematics Education, 245-259 (2012).} \itemab Summary: This paper discusses aspects of a two-year study of a teacher-training course for adult mathematics education organized by a Brazilian landless peoples' social movement. It takes ethnomathematics as a theoretical framework in which cultural differences are central. The paper analyzes some of the oral mathematics practices that mark the landless peoples' culture studied. In particular, it discusses a pedagogical process involving the articulation of oral mathematics practices with the use of the calculator, focusing on how pre-service teachers give meaning to their experience and on how cultural differences operated in this setting. This article is a reprint of [ZDM 37, No. 2, 101--108 (2005; ME 2005e.02014)] \itemrv{~} \itemcc{B50 C69 U79} \itemut{ethnomathematics; teacher training; Brazilian landless movement; use of calculators; cultural differences; adult education; oral mathematics} \itemli{doi:10.1007/978-3-642-27702-3\_22} \end