Simulando estequiometría con la hoja de cálculo: uso de la barra de desplazamiento

Abstract

A sequence of activities is presented for use in the teaching of stoichiometry by means of simple spreadsheets that have the scroll bar incorporated as an interactive resource. Using this method as an alternative to routine ways of doing exercises, students will become more motivated and active, setting up numerical simulations and answering questions like “What happens if…?” Simultaneous visualization of initial and final experimental quantities, and of the stoichiometric relation, makes it possible to deal with students’ alternative conceptions.