| Summary: | The framework of sustainable development encompasses a series of behaviours which include the proper management of the waste we produce. This concept should be addressed in classrooms to ensure proper waste management. The amount of knowledge of the teachers and the inclusion of these concepts in the education curricula are essential factors when providing proper teaching about waste and waste management. The general objective was to analyse the amount of knowledge about waste of teachers in training within the framework of sustainable development. The sample consisted of 72 secondary school teachers in training belonging to three scientific-technological areas (Physics & Chemistry, Biology & Geology, and Technology). The methodology used was exploratory and quantitative. As a measuring instrument, a questionnaire was elaborated based on the educational curricula and based on previous research, made up of five categories (Waste and Society, Regulations, Awareness, Technological Development, and Typology). The results of the study show that teachers in training lack knowledge regarding waste. Within teacher education programs, it is, therefore, necessary to address issues of sustainability including waste in order to prepare teachers that are competent and willing to teach such important topics.
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