Research has shown that collaborative learning is a very powerful methodology as it ensures interaction among students, humanises the learning process and has positive effects on academic achievement. An activity based on this approach can also benefit from the use of technology, making this task more appealing to our students today. The aim of…

Districts are increasingly making personnel decisions based on teachers' impact on student-achievement gains and classroom observations. In some schools, however, a teacher's practices and their students' achievement may reflect not just individual but collaborative efforts. In other settings, teachers' instruction benefits less from the insights…

There is considerable agreement about the fact that the presence of researchers in the classroom mediates teaching and learning. Why "should" two very different forms of human activity, one designed to study the other, interact and mediate each other? In this article, we propose cultural-historical activity theory as a framework for understanding…