Every teacher is expected to be aware of the core values their institution stands for. Moreover, teachers are expected to anchor every task, especially instruction in these values. The duties of a teacher in instruction in relevance with the educational trends never changes. They are to deliver instruction in a way that the students will be equipped with the knowledge, skills and competencies needed to survive and succeed in the society, in the hearts and minds. However, the extent of their practice of each value may vary in level. Hence, the study attempted to take a look at the philosophical underpinnings in instruction of the faculty through determining the extent of faculty practices of responsibility, involvement, commitment and excellence in instruction at the Mindoro State College of Agriculture and Technology (MinSCAT). Using descriptive-comparative method, the study found out that respondents seemed assured that the faculty from the three campuses has clear philosophical underpinnings of the College Core Values. Faculty practice and carry out responsibility, involvement, commitment and excellence in instruction in different extents in the three MinSCAT campuses. With this, the study recommended that the administration should conduct unified faculty seminars and workshops that will strengthen more the faculty’s adaptation of the MinSCAT core values in their instruction at the three campuses. Faculty should be called for symposium or forum about the school policies in the faculty manual, or at least be provided by a copy of the manual. Finally, faculty communication and interpersonal skills should be upgraded and updated through seminars focused on developing the skills.