Table 3. Subject, problem-posing, method and result of the group projects.

Group	Category	Content
A	Subject	Survey on the recognition and usage of campus forest
	Problem-posing	Strenthening functions of urban forest by expansion of campus forest
		Importance of campus forest in education and urban environments
	Method	Survey
	Result	Perception of campus forest
B	Subject	Current status of tree disease and insect pest control at campus forest
	Problem-posing	The university’s neglect of tree disease and insect pest
	Method	Field investigation, Data survey
	Result	Comparison of landscaping budget by four universities
		Suggestion of control protocol for tree disease and insect pest
C	Subject	Current status of tree disease and insect pest control– at campus forest
	Problem-posing	Monitoring of disease and insect pest of tree at campus forest
	Method	Field investigation, Research literature
	Result	Suggestion of control protocol for tree disease and insect pest
D	Subject	A survey on the perception of faculty and students on the green rooftop
	Problem-posing	Unused rooftop space
		Expansion method of green space through roof garden
	Method	Survey, Interview, Measuring
	Result	Analysis survey, Create a bird’s eye view
E	Subject	Decoration of campus forest
	Problem-posing	Absence of theme about campus forest
	Method	Survey, Data survey
	Result	Re-design of campus forest
		Considerate of climate change when planting trees