Although Indigenous and non-Indigenous teachers, administrators, and educational policy makers have made efforts to improve Indigenous educational outcomes, slow progress limits the opportunities available to Indigenous learners and perpetuates social and economic disadvantage. Prior Canadian studies demonstrate that some teachers attribute low ability and adverse life circumstances to Indigenous students, possibly influencing classroom placement. These findings were the catalyst for an Australian-based study assessing the influence students' Aboriginal and/or Torres Strait Islander status had upon teachers' placement decisions. Teachers allocated fictional students to supplementary, regular, or advanced programs. Study findings revealed that teachers' decisions were based upon assumptions regarding the perceived ability, family background, and/or life circumstances of Indigenous learners. The research tool designed for this study provides a way for teachers to identify the implications of biases on decision making, making it a valuable resource for teacher educators engaging in equity work with preservice teachers.