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ABSTRACT
This research investigates the problems in teaching and learning writing skill
at a high school in Ha Dong district and the implementation of writing portfolios to
improve students’ writing skill. It aims to find out how teachers can use writing
portfolios to improve grade 10th students’ writing skill and students’ attitudes
towards the implementation of writing portfolios in class. Three cycles of action
research was conducted with a class of thirty six students, and the data were
collected using questionnaires, teaching diaries, students’ portfolios and interviews.
The findings indicated students lacked time for practising the skill, had poor
background knowledge including lexical- grammar and idea limitations, and low
motivation. The application of writing portfolios has helped students improve their
writing performance in task achievement, coherence and cohesion, lexical resource
and grammatical range and accuracy. At the end of the project, most of the
participants expressed a strong consensus that writing portfolios not only had
positive impacts on their writing skills but also created a positive attitude towards
the subject English.