Bob Perry is Emeritus Professor at Charles Sturt University, Australia, and Director, Peridot Education Pty Ltd, having retired from active university teaching and research after 45 years. In conjunction with Sue Dockett, he maintains active interest in early childhood mathematics education; educational transitions, with particular emphasis on transition to primary school; researching with children, and evaluation of educational programs. Sue Dockett is Emeritus Professor, Charles Sturt University, Australia, and Director, Peridot Education Pty Ltd. While retired from university life, she retains her professional interest in the field of early childhood education. Sue has been a long-time advocate for the importance of recognizing and responding to young children's perspectives. She maintains this position in explorations of transitions to school, children's play, and learning.