Global society is facing major challenges, which are to be met by pursuing the Sustainable Development Goals (SDGs). Digitalization processes bring many opportunities for achieving SDGs, but they also bring pitfalls. For example, on one hand, social media makes it easier for more parts of society to participate. On the other hand, the ability to rapidly circulate unfiltered information can lead to the spread of misinformation and subsequently interfere with the achievement of SDGs. This effect could be observed during the COVID-19 pandemic and continues to occur in the context of climate change. Young people are especially likely to be exposed to misinformation on social media. With this in mind, it is enormously important for schools to prepare young people to critically handle the overload of information available online. The aim of this study was to provide future middle and high school teachers with a fruitful approach to foster a critical attitude towards information in classrooms. To this end, we expanded an existing approach by implementing active, technique-based inoculation and technique-based debunking within the COVID-19 content framework in a teacher education course. This implementation was monitored by a mixed-methods study with n = 24 future middle and high school teachers who participated in two courses in subsequent semesters. By performing statistical analysis on pretests and posttests and qualitative content analysis on reflective journal entries, we found that future teachers’ self-efficacy expectations for detecting and debunking misinformation, as well as their debunking skills, increased throughout the courses. In addition, our results show that future teachers perceive active, technology-based inoculation as a helpful approach for their future teaching. They feel that this approach can be a way to implement education for sustainable development in schools with a focus on the promotion of critical thinking. In summary, we believe that the approach presented in this article may be beneficial for teaching the critical treatment of information in various thematic contexts.

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