[1] Southern Cross Univ, Fac Educ, Gold Coast Campus, Gold Coast, Qld, Australia
[2] Southern Cross Univ, Fac Hlth, Coffs Harbour Campus, Coffs Harbour, NSW, Australia
[3] Math Assoc New South Wales, Sydney, NSW, Australia
[4] Southern Cross Univ, Fac Educ, Lismore Campus, East Lismore, NSW, Australia
[5] Southern Cross Univ, Fac Educ, Coffs Harbour Campus, Coffs Harbour, Qld, Australia