Darastani, Azadeh Shafaei
(2012)
The Effect Of Project-Based Learning (PBL) On Iranian EFL Learners' Vocabulary Recall And Retention.
Masters thesis, Universiti Sains Malaysia.
Abstract
This study explored the effectiveness of the Project-based Learning (PBL)
method on vocabulary learning and acquisition of Iranian elementary EFL learners.
PBL is an instructional method which involves students learning and facilitating their
own projects. Working in collaboration with others, engaging in self-directed
learning, applying new knowledge to solve problems, and reflecting on what has
been learned are the main features of this method. PBL also incorporates real-life
challenges where the focus is on authentic problems or questions and where solutions
have the potential to be implemented. The study measured the effectiveness of PBL
on EFL learners’ vocabulary recall and retention based on an experimental
methodology. For this purpose, a pretest-treatment-posttest approach was employed
on two groups of subjects, control and experimental. The former was taught new
vocabulary items using the conventional teaching method while the experimental
group was taught using PBL. To measure the effectiveness of PBL against the
conventional method of learning vocabulary, post-tests and delayed post-tests were
administered to both groups.
The statistical analysis of the test scores shows that the experimental group
scored better for recall and retention of new vocabulary. A survey on the students’
perceptions of PBL supports the findings on the significance of PBL. The survey
reveals that students were satisfied with the new method of teaching and enjoyed the
teamwork and their engagement with their classmates. The current research findings
support the claim that learning and acquiring vocabulary knowledge should be done
in context, through collaboration with other learners, and project work.
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