THINKING TOOLS AND VARIATION
THINKING TOOLS AND VARIATION

 
 
 This article discusses five papers focused on “Research on Reasoning about Variation and Variability”, by Hammerman and Rubin, Ben-Zvi, Bakker, Reading, and Gould, which appeared in a special issue of the Statistics Education Research Journal (No. 3(2) November 2004). Three issues emerged from these papers. First, there …