ABSTRACT
This chapter focuses on the data handling cycle. Statistics and data handling can be an exciting and motivating area to explore with the children one teaches. It is also one of the most important areas of mathematics in which to develop skills in order to be able to make sense of and understand the world around us as presented through the media. Venn diagrams and Carroll diagrams are used to sort objects. Carroll diagrams are actually named after the author Lewis Carroll, who wrote Alice in Wonderland and was fascinated by mathematics. People have explored Alice in Wonderland for the mathematics it contains and Lewis Carroll also wrote academic books on geometry. Venn diagrams were introduced by a mathematician called John Venn in 1880. In their article 'Curricular opportunity and the statistics of lines', Paul Andrews and Heather Massey suggest that data, unless collected within a meaningful context and then analysed purposefully, is not worth collecting.
