“…The recommended new practices will be fi ltered through the lenses of the teachers' personal beliefs (Pajares, 1992;Richardson, 1996), which may in turn affect their classroom practices (Charlesworth et al, 1993;Stipek and Byler, 1997). Any attempts to change or improve classroom practices without consideration of the teachers' beliefs have often resulted in superfi cial change fraught with misunderstanding and misinterpretation (Kostelnik, 1992;Ryan, 2004;Walsh et al, 1993), or even worse, in strong resistance to change (Bailey, 2000;Sarason, 1990Sarason, , 1996. Therefore, with the current focus on early mathematics education, it is more important than ever to understand prekindergarten teachers' beliefs in order to achieve a high quality mathematics education in pre-kindergarten classrooms.…”