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The present proposal focuses on the strategy of open problem solving in school science, that starts from a fortuitous situation that involves acid-base reactions and that offers a point of view to practical laboratory work that differs from “recipe procedures”, and that provides motivation and improves the cognitive linguistic abilities of pupils. It is presented a possible laboratory guide that enables the task to be organized starting from the heuristic tool known as the ‘Gowin's V’ in order to establish relations between concepts.

educación química

Situaciones problemáticas de Química diseñadas como pequeñas investigaciones en la escuela secundaria desde un encuadre heurístico a partir de una situación fortuita que involucra reacciones ácido-base