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26 août 2019
- ISIDORE Id: 10670/1.e51eda...
- hal: hal-02883138
info:eu-repo/semantics/OpenAccess
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Sophie Canac et al., « Development of a resource for the teaching of chemical formulas and its appropriation by teachers », HAL SHS (Sciences de l’Homme et de la Société), ID : 10670/1.e51eda...
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Teaching the symbolic language, the concepts of submicroscopic and macroscopic models, of the empirical register should be done in a dialectical way to encourage the students to make links between the different registers and levels. The symbolic language acts as a bridge between macroscopic and submicroscopic levels. Relying on the history of chemistry makes it possible to highlight the reasons that have led to current chemical formulas. Therefore, we designed a resource based on the controversies in the history of chemistry. We followed a method close to that of the Model of Educational Reconstruction to develop a resource on the introduction of chemical formulas for grade 8 students in France. The resource was proposed to four teachers and implemented by two of them. The principal steps and results of the process are presented.
