O estudo da proporcionalidade e a relação com o desenvolvimento do raciocínio proporcional.

Abstract

This paper highlights proportionality in some points of history, such as the Rhind Papyrus and the Golden Ratio, its definition with the Fundamental Theorem of Proportionality, and different ways of applying proportional reasoning to solve problem situations, such as the rule of three, reduction to unity, and application of the Fundamental Theorem of Proportionality. We do not seek to define the best or most objective application here, but rather the development of proportional thinking, in addition to seeking a reflection on how proportionality has been worked on and how its understanding can contribute to the development of concrete proportional reasoning, which is useful in so many other topics and areas of knowledge.