Teaching climate change in the context of the climate system: A mixed method study on the development of systems thinking skills in German 7th grade students regarding the climate

Abstract: This paper reports part of a larger study on the development of systems thinking skills in German 7th grade comprehensive school students regarding the climate. Research has shown a fragmented understanding of climate change among students that hardly accounts for the dynamic interrelations in the climate system and may pose a barrier in understanding adaptation and mitigation strategies (Shepardson et al., 2017, 2011, Calmbach 2016). While much is known the impact of short-term interventions on the general system understanding of students, what is lacking to date is 1) a specific intervention on climate system understanding and 2) insights into the process of developing system understanding in students. Helpful insights in this context come from Conceptual Development theories for they allow the development of systemic thinking to be viewed in terms of conceptual expansion or conceptual change. Starting from these desiderates, a teaching-learning sequence was developed based on the SYSDENE model of system competence (Frischknecht et al. 2008). In the sequence young learners systematically link experiences from formal science education with the experiences at three non-formal learning environments. A mixed-methods approach was used to explore the impact of this 3-month sequence on 19 7th grade students. A written pre-/post-test suggested a significant improvement in Climate System Reconstruction for the group (pre-test Median = 6.75 vs. post-test Median = 12.5, Wilcoxon Test: p = .003, r = .82). However, a qualitative analysis of classroom conversations, interviews and concept maps indicated that cognitive development toward a higher level of system thinking was neither continuous nor did every student reach it. Moreover, the SYSDENE model’s Competence Area “Describe System Model” proves critical. Being able to describe the main climate system factors is not sufficient, one also needs to be able to distinct weather from climate and grasp several scientific concepts related to the climate (e.g. greenhouse effect, water cycle, evaporation, reflection) in order to understand climate as a system.