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The problem of plastic wastes is serious nowadays worldwide, although plastic wastes recycling is already in practice. To promote sustainability in plastic waste recycling, the quality of wastes collected should be maintained well, resulted from a good recycling practice. This paper aims to study a new plastic recycling bin (PRB) and poster interventions on the enhancement of university hall residential students’ proenvironmental knowledge, attitudes and intended behaviours (KAB) and actual recycling behaviours; informative and feedback posters were used as interventions.

This study adopted a quasi-experimental setting to examine the effects of the new PRB on students’ KAB and actual behaviours in recycling, whereas the quality of the recycled plastic was measured according to the extent of cleanliness (CLE), separation (SEP), compression (COM) and sortedness (SOR).

Results showed that significant positive enhancements in KAB only happened with the use of blended interventions, which included promotion through the PRB and posters, suggesting that the use of the PRB and posters was useful in achieving better recycling behaviour.

Blended intervention study by using new design plastic recycling bin and poster on the effect of students’ proenvironmental and recycling KAB.

This paper aims to compare the learning outcomes of gaming simulation and guided inquiry in sustainability education on plastic waste management. The current study targets the identification of success factors in these teaching approaches.

This study used a quasi-experimental design with undergraduate participants who were randomly assigned to an eight-hour sustainability education class using either gaming simulation or guided inquiry. Pre- and post-tests on students’ knowledge, attitudes and intended behavior were conducted, followed by individual interviews to provide more detailed reflections on the teaching approach to which they were assigned.

In terms of knowledge acquisition and behavioral changes, the quantitative results suggested that the pre-/post-test in-group differences were significant in both groups. More importantly, a significant positive attitudinal change was observed in the gaming simulation group only. In the interviews, participants attributed effective knowledge acquisition to active learning element in class, while the characterization of cognitive dissonance triggered in the gaming simulation induced subsequent affective changes.

Activities in this program can be applied or modified to accommodate differences in other similar programs. The findings can also provide indicators to designs of similar programs in the future.

This paper explores plausible factors (ideology and implementation) that contribute to successful sustainability education programs. Through comparison between gaming simulation and guided inquiry, elements for effective education for sustainable development learning in the pedagogical designs are discussed.