ABSTRACT
This action research aimed to determine the effects of the “Layers Up!” SIM in the least mastered competency of Earth and Life Sciences particularly the Formation and Correlation of Rock Layers of select Grade 11 learners of Villanueva Senior High School. The Strategic Intervention Material or (SIM) is the newest remediation material prescribed by the Department of Education to lessen academic underachievement by increasing the learners’ performance in the least mastered competencies and skills. The students were selected using simple random sampling technique (Fishbowl Method). In this sampling technique, twenty students were randomly drawn. In order to collect data, Learners’ Pre-Test and Post Test in the least mastered competency in the Formation and Correlation of Rock Layers were prepared by the teacher-researcher. The result showed that the use of the “Layers Up!” SIM has significantly increased the understanding of the lesson in the least mastered competencies in Formation and Correlation of Rock Layers. It showed a 0.07 normalized gain score which tells the difference between the post-test and pre-test scores. The study reveals that SIM can significantly increase the learners’ performance on the least mastered topics. It is recommended that parallel studies be conducted to include SIM in regular classroom teaching routines.
Keywords: SIM, Least Mastered Competency, Remediation
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