The Structured Query Language (SQL) forms a substantial component of introductory database courses and is supported by almost every commercial database product. One disadvantage of SQL is that it does not provide a universal quantification construct. Queries that have twisted universal and existential quantifiers can be stunning for students,…

Within-group similarities and between-group differences are used to illustrate the socio-cultural nature of the concept-building process in highly collaborative computer science classrooms. Simultaneously, a social constructivist perspective is used to describe the individual aspects of this development. The study uses written explanations from…