Abstract
One of the challenges elementary pupils face is developing strong vocabulary skills. This quasi-experimental study aimed to determine the effectiveness of Project HVS (Harnessing Vocabulary Skills), a 20-word-a-day practice, in improving the vocabulary skills of Grade 5 students. The study utilized researcher-designed pre-test and post-test questionnaires, administered to 30 Grade 5 pupils from Clementa F. Royo Elementary School during the 2023-2024 academic year. Pre-test results indicated that the students exhibited below-grade-level proficiency in vocabulary. However, the post-test scores demonstrated significant improvement, with the students' scores increasing after the implementation of the 20-word-a-day practice. The results were statistically significant, supporting the conclusion that the 20-word-a-day practice is effective in enhancing vocabulary skills among Grade 5 learners. It is recommended that educators and policymakers integrate similar interventions into language curricula to promote vocabulary development and linguistic proficiency among students.