Effectiveness of Digitized Strategic Intervention Materials in Improving Performance in Science of Grade 6 Learners

This study determined the effectiveness of Digitized Strategic Intervention Material (SIM) in improving the performance of Grade 6 learners in the identified least-learned Science competency at Esperanza Central Elementary School, Esperanza District I, Division of Agusan del Sur. Specifically, it focused on describing and demonstrating different ways of separating mixtures based on the physical properties of their components. The study employed a descriptive-developmental research design using a one-group pretest-posttest approach. The participants consisted of 33 Grade 6 learners from Section Patience during School Year 2025-2026, selected through purposive sampling. The digitized SIM was developed using the ADDIE Model and incorporated multimedia resources, interactive activities, guided exercises, and formative assessments. The developed material underwent expert evaluation for content validity, language validity, format and layout, mechanics, learner engagement, usability, and overall acceptability. Data were analyzed using descriptive statistics and a paired-samples t-test. Findings revealed that the digitized SIM obtained favorable expert evaluations, with overall weighted means of 4.88 for content validity, 5.00 for language validity, 4.93 for format and layout, and 4.72 for mechanics, learner engagement, usability, and acceptability. Following implementation, 84.85% of the learners achieved an Outstanding performance level. Furthermore, learners' mean scores increased from 8.37 in the pre-test to 17.37 in the post-test, with a statistically significant difference, t(32) = 11.24, p = .001. The findings indicated that implementing the digitized SIM was associated with a significant improvement in learners' Science performance. The study supports using competency-based digitized intervention materials as supplementary instructional resources to address identified learning gaps in elementary Science.