Cheeseman, JillMcDonough, AndreaClarke, DougJ. ClarkB. KissaneJ. Mousley2025-10-172011https://hdl.handle.net/20.500.14802/18915In this paper, we discuss the use of a framework of “growth points” in early mathematics learning and a related, task-based, one-to-one interview in assessing children’s understanding of the measurement of mass. Data are presented from a sample of 1806 children in the first three years of school. An example of a child’s responses is given to illustrate the kinds of thinking revealed by interviewing young children about their developing concepts of mass.Conference itemOpen accessControlled201008622