• Bogdan Nikolov Plovdiv University „Paisii Hilendarski“, Faculty of Biology, Department of Ecology and Environmental Conservation, Plovdiv
  • Slaveya Petrova Plovdiv University „Paisii Hilendarski“, Faculty of Biology, Department of Ecology and Environmental Conservation, Plovdiv
  • Vanya Naydenova Plovdiv University - „Lyuben Karavelov“ Branch, Department of Pedagogy, Kardzhali
  • Delka Karagyozova-Dilkova Plovdiv University „Paisii Hilendarski“, Faculty of Biology, Department of Botany and Teaching Methods in Biology, Plovdiv



sustainable development, recycle-reuse-reduce, separate waste collection, pro-ecological behavior


Environmental education addresses the most common and current environmental problems as they could lead to a serious ecological misbalance on Earth. One of them is associated with a huge amount of waste, the need for sustainable management and recovery. For this reason, the topic of sustainable waste management needs to be included in the process of environmental education, to be based on an interdisciplinary approach, to start from an early age and be embedded not only in school curricula but also in extra-curricular activities, to be conducted systematically and methodologically provided.

This paper presents an interactive model for training in sustainable waste management through an activity approach that could be successfully applied in some extra-curricular activities. Didactic instruments have been developed in the course of a project funded by the University of Plovdiv, aiming to enhance the ecological competencies of both pupils (11-13 years’ age) and students (pre-teachers in Biology).  The thematic content included four themes: Waste definition and classification, Waste treatment, the Recycling process, and the Composting process. Learning activities and the expected results of the training are defined for each theme. The innovative model of training in sustainable waste management includes four of the most popular interactive educational methods:   research-based education, problem-based education, game-based education, and project learning. Worksheets have been developed for all activities, and the thematic content was structured following environmental topics, enabling environmental education through a proactive approach. In order to assess the effectiveness of the interactive methodology, two questionnaires (pre-test and post-test) were developed. Each one consisted of 15 questions allowing the analysis of the environmental competencies of pupils (knowledge, attitude and behavior construct), as well as the attitudes, habits and behavior of both children and their families to the problem of sustainable waste management. The first questionnaire was made before the training in order to determine the entry-level of knowledge and competencies, while the second one was conducted after the training in order to evaluate the competencies’ enhancement.

The experimental trainings conducted (2019-2020) show that these models for training in sustainable waste management, based on the constructivist approach, lead to a significant increase of pro-ecological behavior and can be successfully implemented in the education process. According to the knowledge construct, we found that the working hypothesis was confirmed for 80.2% of the pupils (χ2 = 2.043, p <0.05). Based on the attitude construct, we found that the working hypothesis was confirmed for 46.7% of the pupils (χ2 = 1.205, p <0.05). In the behavior construct, the working hypothesis was confirmed for almost 23% of the pupils who had not had long-term habits for nature conservation and rational use of resources before the time of training (χ2 = 0.383, p <0.05). This was the construct with the lowest positive change from the three studied.


Bruner, J. (1985). Vygotsky: A Historical and Conceptual Perspective. In J. V. Wertsch (Ed.), Culture, Communication and Cognition: Vygotskian Perspectives (pp. 21-35). Cambridge: Cambrige University Press.

Dewey. J. (1938). Experience and Education. New York: Collier Books.

Karagyozova-Dilkova, D. (2007). Personality-oriented strategies in Biology education. Plovdiv

Killermann, W. (1998). Research into biology teaching methods. Journal of Biological Education, 33(1): 4-9

Kolb, D. A. (1984). Experiential learning: Experience as the source of learning and development (Vol. 1). Englewood Cliffs, NJ, Prentice-Hall.

Kurt, S. (2021). Constructivist Learning Theory, in Educational Technology, February 21, 2021. Retrieved from

Nikolov, B., Stankova, G., Tabak, A., Kateva, M., Shamburova, R., Dzhambazova, P., Petrova, S., Naydenova, V., Karagyozova-Dilkova, D. (2020). Methodological model for enhancement of the ecological competences of students through sustainable waste management. Proceedings of CBU International Conference on Innovations in Science and Education, 20-22 March 2020, Prague, Czech Republic, in press

Piaget, J. (1953). Origins of Intelligence in the Child. London: Routledge and Kegan Paul.

Vygotsky, L. (1978). Mind and Society: The Development of Higher Psychological Processes. Cambridge, Massatchusetts: Harvard University Press.

Woolfolk, A. E. (1993). Educational psychology. Boston: Allyn and Bacon.

Woolfolk, A. (2007). Social cognitive and constructivist views of learning (Chapter 9). Educational Psychology (p. 204-245). Upper Saddle River, NJ: Prentice Hall.




How to Cite

Nikolov, B. ., Petrova, S. ., Naydenova, V. ., & Karagyozova-Dilkova, D. . (2021). INTERACTIVE METHODS OF TRAINING IN SUSTAINABLE WASTE MANAGEMENT. Proceedings of CBU in Natural Sciences and ICT, 2, 81-86.
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