A partner's competence should logically favor cooperative learning. However, research in cooperative learning has shown that a partner's competence may or may not activate a threatening social comparison and yields dual effects: It is beneficial when students work on complementary information while it is detrimental when students work on identical…

This paper presents a programme designed to deepen knowledge regarding diversity and to sustain equality and equity in participation during class activities in high sociolinguistic diversity classrooms. We investigated a four-stage programme integrating all students' heritage languages in cooperative school activities in one 4th grade class in the…