Dr. Chang Chew-Hung is an associate professor in the Humanities and Social Studies Education Academic Group and also Associate Dean of the Office of Graduate Studies and Professional Learning, National Institute of Education, Nanyang Technological University, Singapore.  Dr. WU Bing Sheng is an assistant professor at the  National Taiwan Normal University, Taipei, Taiwan. His research interests are GIS, remote sensing, urban modeling, volunteered geographical information, and spatial learning. Dr. Tricia SEOW is lecturer at the National Institute of Education, Nanyang Technological University, Singapore. She graduated from the Institute of Education, London in 2014. Dr. Kim Irvine is an associate professor at the National Institute of Education, Nanyang Technological University, Singapore. He has published 100 peer-reviewed articles and book chapters, primarily related to water-resource management and water-quality issues.