Philippine E-Journals

Development and Validation of Strategic Intervention Materials (SIM) in Mathematics

Cheryl Asia

Discipline: Education

 

Abstract:

This study explores the impact of Strategic Intervention Materials (SIM) on Grade 8 students’ understanding of Triangle Congruence. Conducted during the 2015–2016 school year at a public high school, the research specifically targets this challenging mathematical concept to determine if specialized materials can effectively bridge learning gaps. The topic was chosen because it was one of the most challenging areas for students, based on the Secondary Learning Competencies for the fourth grading period. The researchers implemented a pre-test and post-test approach to measure the impact of the SIM on student achievement. This evaluation included a diverse group of participants: 40 students, 13 Mathematics teachers, and a division supervisor, ensuring a comprehensive view of the material’s effectiveness. Statistical analysis revealed a significant improvement in student performance following the intervention. Statistical analysis revealed a clear improvement in performance following the use of SIM. Prior to the intervention, most students (46%) were rated at the “Fair” level, with only 10% reaching the “Very Satisfactory” level. Following the intervention, student achievement shifted significantly: 41% reached the “Satisfactory” level, while the “Very Satisfactory” and “Excellent” categories increased to 15% and 5%, respectively. Notably, the number of students in the “Poor” category decreased from five students in the pre-test to only one student in the post-test. This upward trend is statistically supported by the mean scores, which rose from 7.87 to 13.82, representing a positive mean gain of 5.95 points. Statistical analysis confirmed a significant difference between these scores, as the computed exceeds the tabular value of 1.96 at the 0.05 level of significance. Consequently, the null hypothesis is rejected. These results demonstrate that SIM effectively enhanced student understanding and academic performance in Mathematics by successfully addressing existing learning gaps. Teachers also gave positive feedback, noting that the SIM’s structure guide, activity, assessment, enrichment, and reference cards were not only effective for this topic but could also be adapted for other lessons. Students and teachers shared helpful suggestions for improving the material. Based on what was learned, the study encourages the continued use and refinement of SIM to close learning gaps and to support different types of learners more effectively.