Developing learning progressions to support mathematical reasoning in the middle years: statistical reasoning

As part of the Reframing Mathematical Futures II (RMFII) Project, Statistical Reasoning was identified as one of three areas of Mathematical Reasoning to be investigated. A hypothetical learning progression for statistics was developed based on previous research. Assessment tasks designed to address different Zones of the progression were sent to trial schools and the data were analysed using Rasch Analysis. This paper reports on the analysis of the preliminary data received and gives some implications for teaching