Approche didactique d'une question socialement vive agronomique, la réduction de l'usage des pesticides, modélisation du raisonnement agro-écologique et socioéconomique d'élèves et d'étudiants : appuis et obstacles à l'enseigner à produire autrement

Abstract : The Ecophyto Plan imposes a 50% reduction of pesticides by 2025, generating a paradigm shift in crop protection. To ‘Produce differently’ reconciling techno-economic, environmental and social performances is an issue. Agricultural education plays a key role in training future farmers. Teaching-learning the construction of agro-ecological and socioeconomic reasoning favoring alternatives to pesticides, linked in sustainable development, contributes to prepare future farmers to develop agroecosystems using fewer pesticides. It is an agronomic socially acute question that involves emerging, distributed, plural and controversial knowledge, which supposes to consider the risk/uncertainties of the solutions and values of the actors. Our research crossing the didactic of socially acute questions and of agronomy provides a model for problem situation favoring the emergence of adequate reasoning and an analytical grid of the levels of complexity of the reasoning. These model and grid have been tested with pupils/students in two levels of vocational agricultural training (baccalaureat and post baccalaureat). The quali-quantitative analyzes show that pupils/students build Agro-socio and economic reasoning, that students are better equipped to design alternative than pupils at the “baccalauréat” level. By revealing supports and obstacles in teaching-learning to ‘produce differently’, the device is an educational tool for structuring the learning of pupils/students on the complexity of the issues, while expanding the scope of reference in knowledge.
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Nadia Cancian. Approche didactique d'une question socialement vive agronomique, la réduction de l'usage des pesticides, modélisation du raisonnement agro-écologique et socioéconomique d'élèves et d'étudiants : appuis et obstacles à l'enseigner à produire autrement. Education. Université Toulouse le Mirail - Toulouse II, 2015. Français. ⟨NNT : 2015TOU20111⟩. ⟨tel-01355817⟩

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