The model of school groups spreads gradually for the other Brazilian states from Sao Paulo in the early twentieth century. This text analyzes the historical trajectory of constitution of the elementary knowledge; particularly the Arithmetic in the State of Santa Catarina and it takes as a research resource the school legislative texts. The characteristics present in the texts on teaching Arithmetic reveal traces of influence in São Paulo didactical materials and teaching methodology of prescribed arithmetic for use in Santa Catarina.
arithmetic; school group; legislation