This study aimed to improve the level of mastery of the Grade 10 students of Santiago City National High School in understanding the central dogma of molecular biology. There were two groups in the study, the control group (37 students) and the experimental group (40 students) for the school year 2019-2020. They were taken using their second quarter grades and pre-test results employing the independent sample t-test to establish their homogeneity which yielded (p-value=0.39, p-value=0.16) respectively. The Simulating The Realm And Nature of DNA (STRAND) is a combination of a process and the use of models. This method is used by the teacher and students in teaching and learning the concept. Dependent sample t-test and independent sample t-test were used to analyze the pre and post-test results. Results showed that the level of mastery significantly increased in large effect in the control (p-value=.000,d=3.11) and experimental (p-value=.000,d=3.20) groups using the “traditional” and STRAND strategies respectively. It also showed that the students in the experimental group significantly differ in moderate effect (p-value=.043,d=0.25) in terms of mastery level as compared to the control group after using the STRAND strategy. This further implied that STRAND as an intervention increased the mastery level of students in the experimental group in understanding the process of protein synthesis and is therefore recommended for adoption by teachers as one of the teaching strategies and instructional materials.
Archel Pascual, Santiago City National High School, Philippines
Francisco Deo Ventura, Department of Education, Philippines