Anthony Bill
(Poster) Year 9 students compared explicitly the fairness of three dice: a standard factory-made die, a die students fabricated using Sculpey (TM) modelling clay, and a virtual die in a Fathom (TM) simulation. During class discussion students developed a fairness measure – a single statistic quantifying the fairness of the die – calculated as the difference between the observed and the expected frequency in 30 rolls of the die. The students pooled the fairness measures and constructed poster-size dot plots, and the dot plots were then used in whole-class discussion to compare the fairness of the three dice.