Reflections on Practice: Understanding Students' Understanding of Graphs

Abstract

Statistics has emerged as a major component of the school mathematics curriculum during the 1990 (NCTM 1989). We know that understanding the statistical-investigation process (Graham 1987) is central to working with statistics. A statistical investigation typically involve four components: (1) posing the question; (2) collecting data; (3) analyzing data; and (4) interpreting the results, in some order (Graham 1987). Kader and Perry (1994) suggest a fifth stage of a statistical investigation: communicating results.