Abstract
This multiple case study aimed to explore and determine the viewpoints of teachers on ChatGPT use among students. To gain a comprehensive understanding of teachers' perspectives, experiences, and attitudes regarding the incorporation of ChatGPT, an advanced natural language processing model, in the learning environments of their students. Using purposive sampling and inclusion criteria, the participating nine (9) teachers were identified. All of them participated in the in-depth interviews. Results revealed the viewpoints of the participants: absence of academic integrity, potential consequence of promoting students’ laziness, contrast between traditional method and modern method of learning, may results to declining of critical thinking skills, and viewing ChatGPT as a supplementary tool. Upon reflecting to their viewpoints, they arrived at the following insights: providing performance-based activities and being responsible in using artificial intelligence. The results of this study were deemed significant by the participants, teachers, students, and researchers.