Effect of Environmental Problem-based Learning on the Indonesian EFL Students’ Environment-related Vocabulary Mastery and Writing Ability

Dyah Christina Iswandari, Johannes Ananto Prayogo, Bambang Yudi Cahyono

Abstract


This study aims at examining the effect of environmental problem-based learning (PBL) on the environment-related vocabulary mastery and writing ability of Indonesian EFL students. Previous studies showed that problem-based learning is a student-centered learning approach that affects students’ learning positively and significantly. This study employed a quasi-experimental design by involving two classes of senior high school students, each consisted of 30 students. One class was assigned to be the experimental group and treated with environmental PBL, while the other class was assigned to be the control group and taught conventionally. A vocabulary test was used to measure the students’ environment-related vocabulary mastery, while a hortatory writing test was used to examine the students’ writing ability. The data were analyzed by using independent sample t-test. The results of the study showed that the students who were taught by using environmental PBL improved their environment-related vocabulary mastery and their writing ability significantly. The PBL approach is then recommended for future teaching and research. Nevertheless, before implementing this approach, other teachers and future researchers should consider the readiness of the curriculum, the students, and the school infrastructure.

Keywords


environmental problem-based learning; environment-related vocabulary; writing ability

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References


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DOI: http://dx.doi.org/10.17507/tpls.0708.02

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