Study of the Appreciation by the Pupils of Second Baccalaureate Year of Knowledge Objects Relating to Acid-Bases Titrations
This article aims to study the difficulties of the Moroccan high school pupils in teaching of the acid-base topic. Based on others similar context, particularly the Tunisian one, we have firstly carried out a classification of the knowledge objects relating to acid-base titrations in the empirical register and in the register of models. The analysis of the written productions of the pupils in situation of solving problem showed that the Moroccan pupils in classes of second Baccalaureate encountered difficulties to appropriate the knowledge objects relating to weak acid-strong base titrations and to adapt these knowledge as well as with the empirical register and with the register of models.
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