Abstract:
The study was aimed to find out the improvement of students’ ability in writing
argumentative text. This study applied classroom action research design. It was
done through planning, action, observation, and reflection. The location of the
research was SMA Swasta Rahmat Islamiyah Medan Jl. Bakti No.25 Medan. The
subject of this research was the eleventh grade students which consisted of 18
students. Based on the writing argumentative text score, students’ score keep
improving in every test. In the pre-test the mean score was 58,89%, in the first
cycle test the mean score was 73,06% and the second cycle the mean score was
85,56%. The improvement also can be seen from the percentage of the students’
writing argumentative text, in pre-test 22,22% students’ got point more than 70. In
the first cycle test 72,22% students’ got point more than 70, in the second cycle
test 100% students got point more than 70. It means that teaching writing
argumentative text through contextual teaching and learning model can improved
the students’ ability in writing argumentative text.