The aim of this study is to increase children’s social-emotional development using project approach
on early childhood environmental education. The researcher uses applied classroom action research
method to explore the project approach on environmental education as multidimensional approach.
The project approach is in-depth investigation to a topic which has three phases; 1) planning and
getting started, 2) developing project, and 3) reflection and conclusion. This study involved
collaborators and 15 children organized in two cycles. The findings are as follows. The children’s
social-emotional development has been increasing by the end of cycle-2, their social-emotional
development level especially in giving respect to others and borrowing or lending toys has been
increasing significantly as well as their capability on taking part in large program or agenda. Another
finding in this study is the instructional activities during the project approach on early childhood
environmental education has been giving children opportunities to interact actively with people
around since these are the basic of social-emotional development.