In this article, we contest globalised notions of data as 'universally' beneficial, necessary and 'evidence-based'. We do so by drawing upon narrative accounts of the problematic ways data impact educators researching and working in university and schooling settings over time and in varied national contexts. We reveal how data are transient and…

Building on the rich tradition of 'teacher as researcher' in mathematics education, I describe a study undertaken whilst working as a mathematics specialist in an Australian primary school. The focus of the study was on examining whether explicitly teaching students test-taking strategies ('test-wiseness') improved their performance on a…