This document is a teacher's guide for teaching the exploratory course on Computer Hardware Servicing as part of the Technology and Livelihood Education (TLE) curriculum in the Philippines. It provides background information on TLE and the K to 12 curriculum, an overview of the TLE exploratory courses and learning modules, and guidance for teachers on using the learning modules which include learning outcomes, lesson components, teaching strategies, and assessing student understanding. The overall goal is to prepare students for technical vocational careers by developing their skills and knowledge in specific TLE areas based on industry standards.