Advances in social norm research indicated the potential benefit of utilizing social referents, who are highly connected to others and have outstanding positions in social networks, and therefore may effectively provide normative cues for other group members. Addressing the need to increase intergroup tolerance among adolescents, we developed an…

This paper describes the second in a series of studies exploring the acceptance of the subatomic structure of matter by 12-year-olds. The studies focus on a novel learning unit introducing an atomic model from electrons down to quarks, which is aimed to be used at an early stage in the physics curriculum. Three features are fundamental to the…