Discipline: Education
This study aimed to determine the level of effectiveness of online teaching and learning in facilitating instruction for Grade One learners in four selected public elementary schools in District I, Division of Pasig City during the school year 2022-2023 which served as basis for the development of a proposed teaching model. This study used the descriptive-survey method of research since it was the most suitable to use in determining the perceived level of effectiveness of online teaching and learning in facilitating instruction for Grade One learners in the four selected public elementary schools in District I, Division of Pasig City. The respondents were 66 grade one teachers and 34 master teachers. The researcher used a survey questionnaire which was validated by five experts. The two groups of respondents perceived that the synchronous online teaching and learning for grade one learners was very highly effective in terms of video/webcam interactions and effective in terms of small- group breakout rooms and online interactive applications. On the other hand, they perceived that the asynchronous online teaching and learning was very highly effective in terms of giving instructions through messenger chats and posting of video lessons and guide questions in class Facebook page. Likewise, there was no significant difference in the perceptions of the two groups of respondents on the level of effectiveness of synchronous online teaching and learning and online asynchronous teaching and learning. A teaching model for synchronous online interactive applications and small-group breakout rooms was deemed necessary based on the findings of the study, hence, was developed and proposed by the researcher.