Explicit Instruction in Teaching General Mathematics and the Application of Concrete – Pictorial-Abstract Approach

This study determined the performance of grade 11 senior high school students using explicit instruction in teaching General Mathematics and the application of concrete – pictorial-abstract approach during the school year 2022-2023. The study utilized the quasi-experimental research design employing pretest and posttest in general mathematics during the second grading period. The participants of this study were 45 Grade 11 students of ICT B and 42 students of ICT C under TVL – Strand. Purposive sampling technique was utilized in determining the samples of the study. The findings revealed that Grade 11 students had very poor performance in general mathematics, but that performance improved when the teachers gave explicit instructions and employed the concrete-pictorial-abstract approach. Grade 11 students in the control and experimental groups increased their mean gain scores, which proved that explicit instructions and application of the concrete-pictorial-abstract approach were effective in teaching General Mathematics. It is highly recommended that teachers are advised to apply their learnings in teaching General Mathematics to Grade 11 senior high school students using explicit instruction and a concrete-pictorial-abstract approach in order to demonstrate a commitment to improving existing practices and ultimately enhancing the learning outcomes of the students.