A large experiment, investigating to what extent the use of real data and/or technology and/or pedagogical methods favour student's learning of statistics concepts, was carried out in Italy. The experiment has been monitored both from the side of pupils and teachers. This paper shows the findings from the teachers' point of view, through the analysis of their professional profile, attitudes towards statistics and opinions on its teaching before and after the experiment. The study reveals that, as teachers' training was in mathematics, they taught statistics with a mathematical approach, instead of "teaching statistics as a respectable subject" (Moore, 1992, p.14). The experiment produced a further more significant result, as it produced a substantial modification of teachers' perception of the approach to adopt for teaching statistics.
The CAUSE Research Group is supported in part by a member initiative grant from the American Statistical Association’s Section on Statistics and Data Science Education