Abstract
A crucial step towards improving the conceptual use of digital technology (DT) in the
mathematics classroom is to increase teacher involvement in the development of tasks.
Hence, this research considers some teacher factors that might influence DT algebra task
development and implementation in secondary schools. We observed and assisted one group
of three teachers as they designed and implemented DT tasks. Our preliminary analysis
examines the richness of the two tasks produced by one group and seeks to explain the
difference between them. The results suggest the intervention provided with respect to task
design led to improved Pedagogical Technology Knowledge for the teachers, and hence a
richer task. The delivery of the intervention could be of assistance in focusing professional
development programs so they may better facilitate the training of teachers in the use of
digital technology in teaching mathematics.
Iresha Ratnayake, Greg Oates & Mike Thomas
Supporting Teachers Developing Mathematical Tasks With Digital Technology
Investigating Students’ Mathematical Difficulties with Quadratic Equations
Bronwyn Reid O’Connor & Stephen Norton