In line with DepEd Order No. 25, s. 2017, Cuneta Elementary School conducts a Semestral Break In-Service Training to help CES teachers in equipping them with necessary skills needed for teaching 21st Century Learners. The event officially started on October 23, 2017 at 8:00 in the morning. CES teachers are expected to attend this five-day seminar to address andtailored their needs which focuses on traits and skills needed to meet strategic objectives. CES teachers participated in an open forum to give tips and methods that they can use for each subject matter. Each teacher from each subject gave their own perspectives in teaching their own subjects. This helped CES teachers understand the possible techniques used for every subject since there is always a possibility for shift in teaching subjects each year. INSET is essential in providing an update on modern methodologies, issues and trends in Education. CES teachers are able to develop not only their teaching skills but also build their camaraderie with their colleagues.