The objective of this study was to investigate whether the use of the Jigsaw model in teaching-learning Economics could improve the results of Senior High School Students in Banda Aceh, Indonesia. A quasi-experimental design was used in this study, which used 60 randomly sampled second year (Grade 11) High School students for the sample, divided into two classes of 30; one the experimental group (EG) and the other the control group (CG). The two groups were homogenous in terms of their initial ability. The instrument used in this study was an essay test. T-test was used to analyse the data collected. The results from the post-test showed that there was then a significant positive difference between the two groups in terms of the students’ achievements in economics; after the EG had been taught-learnt using the Jigsaw model for three months, they got significantly higher results in their economics essays than the CG students, who had been taught economics using the standard model and had not used Jigsaw. The implications of this study show that the use of the Jigsaw model in teaching-learning economics can be a model for improving students’ achievement.
Various methods of teaching English to EFL students in Indonesia have been used to increase their language skills. However, students’ English proficiency is still not satisfactory. Therefore, this paper aimed at investigating the effects of using authentic English video clips to improve listening comprehension among EFL students in Aceh, Indonesia. A quasi-experimental group design with non-randomized pretest-posttest control was employed in this study. The sample of the study were 68 second-year students of State Senior High School 4 Banda Aceh. The experimental group was treated by using authentic English video clips and the control group was taught by using audio compact disc (CD). A listening test was used as an instrument to collect data. Analysis of variance (ANOVA) was used to analyze the data collected. Results showed that the use of authentic English video clips significantly improved students’ achievement in listening comprehension in comparison to those taught by using audio compact disc (CD), i.e., there was a significant difference between students who were taught by using authentic English video clips and students who were taught by using audio compact disc (CD) in terms of listening comprehension.
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