The Effect of Thematic Classes on English Vocabulary Learning: A Study of Iranian Junior High School Students

This study was designed to verify the effect of thematic classes on English vocabulary learning. Thematic class is an educational project, which recently started to be used in junior high schools in Iran. The ministry of Education in Iran has launched the project of thematic classes to improve learning in 2010 with the hope of copying with some of the educational problems so that students experience deeper learning.  For subjects of the study, 90 7th grade students of junior high school in Taybad, Khorasan e Razavi were selected. Three groups were used in this study: two experimental groups and one control group. Each group consisted of 30 female students, who settled randomly in the groups, respectively. Their range of age was between 13 and 14. A vocabularybased test, which was designed by the researcher, was used as the main measurement tool in the study to evaluate the students achievement in the course. The course lasted 10 weeks, two sessions per week. The results reflected the positive effect of thematic classes on vocabulary learning. Therefore, educational implication of thematic class for junior high school is suggestible.