Abstract
The educational system has undergone substantial transformation over the past two years causing disruptions in traditional learning methods. Learners have struggled to bridge academic gaps and enhance essential skills after transitioning from modular distance learning to in-person classes. Among the key challenges observed is a deficiency in fundamental English vocabulary, affecting both academic writing and oral communication. This study focuses on the specific context of Camohaguin Elementary School (CES), where Grade 2 learners are encountering difficulties in developing their vocabulary skill. Low mean percentage scores in school monitoring evaluations reveal the extent of the problem, affecting areas such as academic writing and oral communication. As technology integration becomes prevalent nowadays, the researchers pursued the study on the Development, Validation, and Testing of Vocabulary Gaming App as a Tool for English Vocabulary Development of Grade 2 learners of Camohaguin Elementary School. The study has three parts: the Development of the app which encompasses Concept, Production, Technicality, and Feedback, its Validation in terms of Design, Content, Accessibility, Ease of Use, and Suitability, and Testing where it reveals the significant improvement in Grade 2 learners’ vocabulary skills, shifting from an "average" level before app usage to "moving towards mastery" after. Additionally, there was a significant difference in pre-test and post-test scores, validating the app's effectiveness.
