Current Practice in Using Dynamic Geometry to Teach about Angle Properties

Recently, we have been examining how experienced teachers in well-regarded subject departments approach the use of ICT in secondary mathematics. Drawing on multiple sources, we identified 11 departments considered to be successful in terms of the quality both of the education that they provided, and of their integration of ICT into classroom practice. Next, we conducted focus group interviews with each of these departments, asking teachers to describe examples of successful practice in using ICT. Then, we invited teachers who had been articulate in support of particular types of practice to help us gain greater insight into these through lesson observations and post-lesson interviews. Dynamic geometry was nominated in around half the departments that we visited.