STAD

This study was an attempt to investigate the comparative impact of Student Teams Achievement Divisions (STAD) and Think-Pair-Share (TPS) on EFL learners’ listening. Accordingly, 60 female EFL learners selected from a larger group of 90 learners based on their performance on a sample piloted Preliminary English Test (PET) who studied at a language school in Tehran were randomly divided into two experimental groups. Both groups demonstrated homogeneity in terms of their listening at the outset. The same content was taught to both groups during 15 sessions with one experimental group undergoing STAD while TPS was used in the other group. At the end of the treatment, another sample PET listening section was administered to both groups. The result of the independent samples t-test run on the participants’ mean scores on the posttest revealed that the TPS group significantly outperformed those in the STAD group. These findings have certain implications which are discussed at length in the paper.

This study examined the effects of cooperative learning techniques (CLT) on vocabulary achievement of reflective/impulsive Iranian EFL Learners. From among 130 students at Fajr institute in Dehdasht, Kohkiloyeh and Boyer Ahmad Province, Iran, 90 participants were selected based on their performance on the Oxford Placement Test (OPT). The participants were then divided into two experimental groups (comprising reflective learners and impulsive learners) and one control group labeled as conventional instruction (CI) group. The instrument used to divide the participants into reflective and impulsive groups was the Eysenck’s (1990) Impulsivity Questionnaire. The experimental groups were taught with the student team achievement division (STAD) technique, while the control group was taught through the traditional method for ten weeks. To measure the vocabulary knowledge of the learners in different groups at the beginning and at the end of the experiment, a pretest and a posttest, each consisting of 40 items on new English words based on their book were used. Independent-Samples and paired-samples t tests were used to determine whether there were significant inter- and intra-group differences. The statistical analysis of the results showed that the experimental groups (reflective and impulsive) performed better on vocabulary achievement posttest than the control group (CI), and also it was revealed that reflective learners performed better on vocabulary achievement than impulsive learners. In sum, cooperative learning enhanced learners’ vocabulary performance, especially the reflective ones.