Students roll dice and record how many throws it takes to roll "doubles."
After 15 trials, the 5-number summary is calculated. Then outlier "fence posts" are computed, and then sketched, using the 1.5 IQR formula. A box plot is drawn and outliers - if any - are clearly plotted outside the fences. Note: If no student accumulates many rolls before rolling doubles - add your own pretend large outlier type result that you did at home.