The Dalandanan National High School opens its INSET with the Theme: 90 DEGREES: Developing Excellence in Professional Growth and Reinvigorating Effectual Education Services. Mathematics Department is assigned as the Program Management Team. The queries, concerns and questions of all the participants were handled competently by the moderators. This INSET is made possible through Zoom and FB Live platform and it is shorter than the previous programs. The guest speakers provide so much knowledge and assistance regarding some topics that is applicable for the teaching styles and strategies. Not only that, also in relation to assisting teachers in writing an action research