- Chang, C.H. & Kidman, G.(2018, MAR). Geography and sustainability - a powerful partnership. Keynote Address, Conference on Education for Sustainable Development in Saudi Arabia, Dammam, Saudi Arabia.
- Chang, C.H.(2017, DEC). Teacher Professional Learning that matters – a Singapore perspective. Keynote Address, Hanoi National Univeristy of Education International Conference on Malaysia and Singapore experiences in pre-service and in-service training for teachers, lecturers and educational managers, Ha Noi, Viet Nam.
- Chang, C.H.(2017, MAY). Teaching and Learning Geography for the 21st Century - knowledge and capabilities. Keynote Address, Curriculum Planning & Development Geography Symposium 2017, Singapore.
- Chang, C.H.(2017, MAY). Teaching and Learning Geography for the future – knowledge and competencies. Keynote Address, 21st Taiwan International Geography Academic Conference, Taipei, Taiwan.
- Chang, C.H.(2015, OCT). Powerful knowledge and climate change education. Keynote Address, 4th Annual International Conference on Geological and Earth Sciences, Singapore.
- Chang, C.H.(2012, MAR). Climate Change begins at home - the case in Singapore. Keynote Address, Camp Success 2012 Mayflower Secondary School, Singapore.
- Chang, C.H.(2008, NOV). Innovation, Discovery & Enterprise 2.0. Keynote Address, River Valley High School Learning Festival: Innovation, Discovery and Enterprise, Singapore.
- Chang, C.H.(2006, FEB). Treat for e-Learning - Learning with Instruction: Theory into practice. Keynote Address, Instructional Design TREAT for e-Learning, ITE College West ET (Educational Technology) Convention, Singapore.