O Campo Multiplicativo a partir do Fórmula (-1): desenvolvendo objetos digitais de aprendizagem e estratégias para a aprendizagem das operações com números positivos e negativos The multiplicative field from the formula (-1): developing digital learning objects and learning strategies for operations with positive and negative numbers

This article shows a discussion about relatives problems of Multiplicative Fields in the knowledge of operations with positive and negatives numbers and the extension in the development of learning digital object Formula (-1). This work has a experimental character and is inserted in the masters research whose the objective is to development a set of additive and multiplicative learning virtual objects which focused on exploitation of additive and multiplicative structures from the perspective of Gerard Vergnaud's Conceptual Fields.