Editorial.

This article presents summaries of the articles contained in this issue of the journal, including an article that analyses the activities of teaching assistants in English upper primary classrooms and their effects, an article that presents research data from ability grouping in secondary schools, an article that examines the effects of the National Literacy Strategy on early reading achievement, an article about school violence and reactive and proactive ways to manage violent incidents, and three articles devoted to qualitative methods and conceptual analysis in education research.