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Chemical equilibrium is one of the most important yet difficult topics to teach. The purpose of this study was to examine how two science teachers experienced the mediation of and how they mediated...

Pharmaceutical chemistry, medicinal chemistry and the drug discovery process require experienced practitioners to employ reasoned speculation in generating creative ideas, which can be used to evolve promising molecules into drugs. The ever-evolving world of pharmaceutical chemistry requires university curricula that prepare graduates for their role as designers with the capability of applying complex concepts in pharmaceutical chemistry, thereby improving the decision-making process. Common methods of teaching drug discovery, including the linear nature of the traditional case study model, do not provide a realistic picture of the underlying complexity of the process, nor do they equip students with the appropriate tools for personal sense making and abstraction. In this work, we discuss the creation of an open-ended, nonlinear case study for 3rd year pharmaceutical chemistry students, developed from drug discovery research conducted at Rhodes University. Furthermore, we discuss blending problem based learning (PBL) with peer-led team learning (PLTL) in the context of curriculum transformation, underpinned by the theory of semantic waves, to assist students in the early attainment of abstract concepts and answer questions of contextualisation, personal sense making, relatability, relevance and ultimately the skills for lifelong learning.

This paper describes a service-learning course in Chemistry Honours at Rhodes University in South Africa. Students visit two schools in different settings, where they present a lecture-demonstration, entitled ‘A Pollutant's Tale’, and two hands-on experiments to school learners. The students are assessed on their learnings as seen through their own reflections on the activities in reflective journals. The reflections from 27 students over four years of the course were analysed to investigate to what extent the educational goals of the course were being met. Six broad themes emerged from student reflections: (1) social awareness; (2) civic responsibility; (3) challenging beliefs; (4) enhanced understanding of science communication and demonstration skills; (5) personal growth; and, (6) evaluating the service-learning experience. In our discussion of these themes, we suggest that through service-learning, students have learnt to do things differently in Chemistry: they have learnt about society beyond the laboratory and beyond their previous life-experiences. Importantly, the students have undergone personal development and picked up critical skills which they will need when traversing life and its challenges – such as, working with and learning from diverse groups of people, teamwork and learning to cope in stressful situations. The paper will be of particular interest to those who are involved in chemistry teaching in both schools and higher education institutions, as well as those interested in service-learning as a pedagogical tool, community and civic engagement and the development of transferable skills in chemistry students.

The Khanya Maths and Science Club (KMSC) is an afterschool science/maths enrichment programme for learners in Grades 7–12 supported by postgraduate students and academic staff volunteers. This research seeks to explore the relationship between participating learners’ attitude toward learning science and the characteristics of this afterschool science club. The study draws from Wenger’s community of practice model to explore the features. Six learners participating in the KMSC were interviewed and their journal entries were analysed inductively, resulting in three themes. The study revealed that learners’ attitudes towards learning science were associated with the club’s instructional characteristics, facilitators/environmental characteristics and the level to which science was connected with everyday life. These characteristics are also related to the community of practice elements. It was concluded that incorporating the community of practice model in structuring afterschool science activities could have...

Science Expos are intended to develop and empower learners to identify local problems and hence find solutions thereof using scientific processes. Science Expos are perceived as spaces for sharing experiences of science which engender love for science so that learners may ultimately pursue science-related careers. Despite these ideals, there is still poor participation in Science Expos by teachers and learners alike, especially from historically disadvantaged schools in South Africa. A qualitative case study underpinned by a community of practice theory was conducted in four disadvantaged schools in the Eastern Cape, South Africa. The purpose of the study was to understand stakeholders’ perceptions of participation in Science Expos. The data were generated using individual semi-structured interviews with two Expo organisers, three teachers and five learners from disadvantaged schools. Additionally, two focus group interviews were conducted with learners. The data were analysed inductively. The findings of...