Teaching Derivational Affixes to Enrich Students’ Vocabulary Mastery at the Eighth Grade Students of SMP Dunia Harapan Makassar

Abstract

The objective of this research was to find out whether or not teaching derivational affixes could enrich students vocabulary mastery. This research used pre-experimental method. The population of this research was the eighth grade students of SMP Dunia Harapan Makassar in academic year 2018/2019 which consisted of 21 students. The researcher used total sampling technique which took 21 students as the sample of this research. The data were collected using vocabulary test in the form of arranging letter, multiple choice, making sentence and classifying the word classes. The result showed that there was a significant improvement, it was proved by the students’ mean score in post-test (91,81) was higher than pre-test (70,62). The t-test value (5,181) which was higher than the t-table (2,086). Therefore, it is concluded that teaching derivational affixes could enrich the students’ vocabulary mastery at the eighth grade students of SMP Dunia Harapan Makassar