... and vocabulary acquisition by Grade 10 students. In order to achieve the aim of the study, a quasi-experiment was designed and implemented in two intact Grade 10 groups in one high school. This ... control group took frequently were of fixed selections from the textbook Tieng Anh 10, which was designed for 10th form students as a whole. Meanwhile, the experimental group who took part in ... due to the sample size of the study. Since the quasi-experiment was only conducted once and on a limited number of subjects (two groups of 60 grade 10 students, only 30 of them received the treatment),...