Enseñar estequiometría con analogías: desarrollo de una secuencia didáctica

Abstract

The objective of this article is to show the development of a sequence to teach the subject of stoichiometry with analogies. Based on the six stages proposed by Glynn, a non-naïve sequence is developed, which is founded on reflections arising from research into the teaching of science. This proposal aims to motivate students and diversify the usual approach used to deal with this subject. Working with analogies should facilitate, in particular, understanding of limiting reagent, chemical formulae and equations. Worthy of special note is the expression of the superordinary concept underlying the analogy, and the derivation of a general procedure for dealing with problems.