Keywords
one-size-fits-all instruction
low achievers
average achievers
high achievers
teaching English grammar
highschool students
effectiveness
How to Cite
Abstract
Differentiated instruction hasn’t been commonly practiced in Ethiopian EFL class and its effectiveness on struggling, grade level and advanced students hasn’t been empirically evidenced on high school students English grammar learning achievement. Consequently, this study investigated effectiveness of differentiated instruction on the struggling, grade level, and advanced students’ English grammar learning achievement. The study adopted the quasi-experimental design. A total of 47 grade twelve students (EG: 23 and CG: 24) were randomly selected and pretested to confirm comparability by using English grammar learning achievement test. The experimental group was exposed to differentiated instruction for ten weeks while the comparison group experienced the one-size-fits-all approach. The pre-test and post-test quantitative data were analyzed using SPSS version 25 software. The t-test inferential statistical data analysis results showed the struggling, grade level and advanced students significantly outperformed, but no significant change was noticed for male and female students. The study concluded that differentiated instruction tremendously enhanced students’ learning achievement.
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