Revisão histórica sobre o Sistema Internacional de Medidas SI

Abstract

This paper presents a historical reflection on the importance of the Internation System of Units - SI. The history of measurement arises from the need of man to quantify or size objects or distances, where later new needs arise for trade, agriculture and breakthroughs. Thus the units were defined, redefined and changed over time with the technological needs for new types of measurements developed for greater accuracy. Thus, units of measurement are present directly and indirectly in almost everything that is done and this is shown by the evidence from the study of units in the field of science. The teaching of measurements and quantifications in Brazil is defined by the National Curriculum Parameters (PCNs), which states that the educational approach to quantification using appropriate measurement and calculation instruments establishes comparisons, estimates, and hypotheses.