The debate on the use of pesticides is very current in the public media when it comes to topics such as organic farming, bee mortality, and the use of glyphosate. The broad range of pesticide applications and their potential environmental impact makes pesticides an interesting topic for science education in general and for chemistry teaching in particular. This is particularly true when conventional pesticide use is contrasted with current chemistry research efforts to develop alternatives based on the ideas of green chemistry. This paper discusses the potential relevance of pesticides for chemistry education in connection with education for sustainable development. It gives a brief outlook on pesticides in science teaching and connects the topic to socio-scientific issue-based chemistry education. A case study which developed a lesson plan for secondary school students is presented here. It defines pesticides, before focusing on the development of green pesticides as potential alternatives to current products. The lesson is focusing learning about chemistry rather than learning of chemistry in the means that the lesson introduces quite young chemistry learners (age range 15–17) to ideas of green and sustainable chemistry and how green alternatives in chemistry can be assessed and compared to traditional alternatives. Video vignettes of a scientist are used to introduce the topic to students. Finally, both glyphosate as a conventional, industrial pesticide and orange oil as an example of a green pesticide are compared using spider chart diagrams. The lesson plan was cyclically designed by a group of ten chemistry teachers using participatory action research. It was piloted with the help of secondary school chemistry student teachers and then tested in five German secondary school classes (grades 10/11). The use of the spider charts was regarded as especially helpful by the learners, most of whom felt that they had been able to understand the controversy surrounding pesticides.
This study focused on inquiring into undergraduate chemistry professors’ efforts in North America to increase student motivation and interest in the subject and the feasibility of methods that connect students to real world applications and societal issues related to chemistry. A survey was distributed to chemistry instructors at post-secondary institutions across the United States and Canada asking about the usage of methods and tools to deliver content aiming at raising students’ perception of the relevance of learning chemistry (N = 124). The instrument also asked about instructors’ perceptions related to assessment, as well as their perception of how their students value the integration of socio-scientific issues into the curriculum. A chi-squared analysis was performed to identify groups of individuals whose responses were disproportionate, compared to the distribution of responses from the sample, in order to identify any unique occurrences. In general, the usage of real-world applications and socio-scientific issues in post-secondary chemistry courses tends to be related to instructors’ value of the role of these topics in their courses, comfort level with the topics, and preferred approaches to developing and implementing the course materials.
About Me
PhD in SciEd (Chem) since 2019
Currently in-service teacher trainee
PhD in SciEd (Chem) since 2019
Currently in-service teacher trainee