Title:Enseñanza de las matemáticas en un contexto social diverso a través del arte, las capacidades y las emociones del niño / Teaching mathematics in a different social context through art, skills and emotions of the child
Title:A geometria nas aritméticas editadas para as escolas paroquiais luteranas do século xx no rio grande do sul, brasil / THE GEOMETRY ON ARITHMETICS EDITED FOR LUTHERAN PAROCHIAL SCHOOLS OF 20th CENTURY IN RIO GRANDE DO SUL, BRAZIL